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Fruit rot disease is one of the main obstacles in the cultivation of guava (Psidium guajava) because it directly reduces the quality and selling value of the harvest. This research aims to identify and characterize the fungus that causes fruit rot disease in guava. The research was carried out by observing disease symptoms in the field, isolating the pathogen from infected fruit, as well as macroscopic and microscopic characterization of the fungus using Potato Dextrose Agar (PDA) media. The results of the research show that the initial symptoms are blackish brown spots on the surface of the fruit which develop into sunken lesions and spread to cause the fruit to dry out. The fungal isolate has white colonies with a flower-like pattern and forms black aservuli. Microscopic observation shows that the conidia are fusiform, insulated, with darker pigmented middle cells and have a transparent appendix. Based on these morphological characters, the fungus that causes fruit rot disease in guava is thought to belong to the genus Pestalotiopsis sp. Further research is needed through molecular approaches, such as PCR or DNA sequencing, as well as pathogenicity tests to strengthen and confirm the role of this fungus as the main cause of fruit rot disease.

Literary works are the author's reflection of real life. This paper aims to determine the intrinsic elements contained in the short story "Killing a Crazy Person" in the short story collection "A Pair of Old Shoes" by Sapardi Djoko Damono with an objective approach. The results of the study indicate that the short story "Killing a Crazy Person" has intact intrinsic elements which include theme, characters and characterization, plot, setting, point of view, style of language, and moral. The method used in this study is qualitative descriptive analysis with an objective approach in literary works. Data analysis techniques include reading the short story, observing the short story, collecting data, describing, and drawing conclusions. The conclusion of this study is the integrity of the intrinsic elements contained in the story. The results show that this short story has intact intrinsic elements that support each other and enrich the meaning of the story. The method used is qualitative descriptive analysis with the steps of reading, observing, collecting data, describing, and drawing conclusions. This study provides a deeper understanding of how the intrinsic elements in the short story "Killing a Crazy Person" work together to form a complete and meaningful story.

This study investigates the effectiveness of an integrative learning model in improving Indonesian literature appreciation skills among high school students. A quasi-experimental design was employed, involving 120 eleventh-grade students from two public high schools in Jakarta, Indonesia. The participants were divided into two groups: the experimental group, which received instruction through the integrative learning model, and the control group, which followed traditional teaching methods. The integrative model was designed to combine language skills development—such as reading comprehension, vocabulary enrichment, and critical writing—with structured literary analysis focusing on themes, characterization, style, and cultural context. Data were collected using pre-test and post-test assessments to measure learning outcomes, observation sheets to monitor classroom activities, and student questionnaires to capture perceptions and engagement levels. The results indicated that students in the experimental group experienced a significantly higher improvement in literature appreciation skills compared to those in the control group (p < 0.05). They demonstrated enhanced abilities to interpret literary works, analyze narrative elements, and articulate critical responses to Indonesian contemporary literature. Observation data revealed that the integrative approach fostered more active participation, collaborative learning, and deeper reflection during classroom discussions. Moreover, student feedback highlighted increased motivation, enjoyment, and perceived relevance of literature learning to real-life experiences. These findings underscore the pedagogical potential of integrative learning models in secondary school literature education. By linking language proficiency with analytical and interpretative competencies, this approach not only strengthens students’ linguistic abilities but also cultivates their critical thinking, cultural awareness, and aesthetic appreciation. The study recommends the wider adoption of integrative methods in Indonesian high schools as an effective strategy for promoting meaningful and enduring engagement with literature.

The novel The Last Shoe tells the story of the life of a father named Pak Marwan. The character Pak Marwan in the novel The Last Shoe is the main character of the story. Mr, Marwan is a shoe craftsman whose name is known as the “father of shoes”. Pak Marwan opened a shoe business and made the name of his village known to many people. This type of research is qualitative research which aims to understand social phenomena, including the phenomenon being studied. The descriptive method of analysis is to describe the facts followed by content analysis. The data in this research is in the form of discourse related to the object of research is the novel The Last Shoe by Toni Tegar Sahidi. The primary data source in this research is the next of the novel The Last Shoe. Data collection techniques use heuristic and hermeneutic reading methods. The results of this research are to find out the characterizations contained in the novel The Last Shoes by Toni Tegar Sahidi, namely responsible, hardworking, business style, and teaching employees to be independent.

The inner conflict of the main character in the novel entitled Sebening Syahadat by Diva Sinar Rembulan is interesting to research through the study of literary psychology. The inner conflict experienced by the main character in the novel begins when the main character finds the woman of his dreams and searches for an identity that he has not yet believed in. The aim of this research is to describe the inner conflict experienced by the main character of the novel Sebening Syahadat by Diva Sinar Rembulan. This type of research is a literature study. The approach used is a literary psychology approach. The method used is a qualitative method. The data collection technique used is a documentation technique in three ways, namely, literature study, reading technique, and note-taking technique. The instrument used is a data card for the classification of intrinsic elements and forms of inner conflict. The analysis technique used is content analysis technique. The presentation of the results of data analysis is carried out descriptively. The results of this research found intrinsic elements in the form of characters and characterization, plot and setting. The second thing was found to be 47 data on the form of inner conflict in the form of (6) anxiety, (1) obsession, (3) frustration, (12) guilt, (7) hurt, (1) fear, (5) inability, (12) angry. This research can be used as an alternative teaching material at the high school/vocational school level.

Efforts to reduce the use of polluting chemicals environment needs innovation to overcome these problems. One of them is by replacing the chemicals contained in the battery by utilizing mango skin waste became bio-battery. Even mango skin waste in the community is not properly utilized so that mango skin becomes waste that has no value. The purpose of this research is to utilize mango skin as a bio-battery material not only to produce current and voltage sources but it is also expected to be able to reduce the negative effects of disposing of community mango skin waste residue into the environment and reduce dependence on chemicals as battery electrolyte paste which has been used so far. The test parameters carried out were the electricity of the bio-baterry using mango skin and salt samples. This research used 3 weight ratios between mango skin solution and salt solution, namely 15:5 gr, 20 gr:5 gr, and 25:5 gr. The main stages of this research consisted of 3 stages, namely preparation, pH testing, characterization of electrical properties, and electrical analysis of mango skin. The results of the research that has been done, it can be concluded that the smallest measurements of pH, electric voltage, and electric current are produced at a volume of 30 ml (15 gr) of 3.55, 0.53 V, and 1.8 mA. While the highest was produced at a volume of 44 ml of 3.53, 1.53 V, and 1.9 mA.  

This study specializes in analyzing the short story Kairos kopi by Putu Ayub using an objective approach to obtain the structure in the short story in the form of intrinsic elements namely theme, point of view, plot, setting, character, characterization, style of language, and message in the short story. The research method used is descriptive qualitative. As for descriptive qualitative is a study devoted to research thoroughly, broadly, and deeply. The results are in the quality of words, sentences and their meanings without comparing the results of this study with the results of other studies. The source of the data obtained is by reading carefully, critically the short story Kairos Kopi by Putu Ayub. Based on the results of the theme used in the short story, which is about struggle, that if we want to start something new we must not be pessimistic. This is consistent with the character in the short story, namely (I) who has a pessimistic character

This study aims to analyze the intrinsic and extrinsic elements in the short story, Lara Lana, by Dee Lestari using an objective and mimetic approach. The research method that I use in this analysis uses a qualitative descriptive method. The resource in this study is the short story Lara Lana by Dee Lestari. The data collection technique used in this study was to read critically and carefully the entire contents of the short story. The data analysis technique is discussing or reviewing the contents of the short story Lara Lana by Dee Lestari. The results of the research are to find intrinsic elements in the form of themes, points of view, plot/plot, setting, characters and characterizations, style of language, and message. You can also find social elements in the phenomena that occur in short stories that are related to real-world life in the form of 1) economic status (poor and rich) 2) bullying 3) love relationships in the novel Lara Lana by Dee Lestari.

This study analyzes the intrinsic elements of a novel that is widely read by the Indonesian people because it contains Teenlit and Chicklit simultaneously. This research uses a type of literature study research. Data collection was carried out by the method of documentation from primary sources in the form of a novel entitled "The Forbidden Heaven". The data were analyzed by reading, recording, classifying, and analyzing the seven intrinsic elements. The results of this study show that; 1) The theme of the novel is quite interesting, and strongly inspiring with contradictory diction. 2) Characterization involves sixteen roles, consisting of the main character and auxiliary with the role of the protagonist and tritagonist. 3) The setting of setting presents several places in Jakarta, Bogor, Kuala Lumpur, and Palestine, but is more dominated by Betawi culture, campuses, and proselytizing organizations. 4) The plot presents a story of togetherness that results in love between Najma and Faisal, is separated by studies and eventually proposed by the one who is also the older brother. 5) The style of the novel language is more dominated by the language of the parable the diction used although less touching, but the reader can feel the emotions built with the spiritual narrative of ruhani. 6) Point of view, the author presents various events with a single and second-person first-person point of view, a singular and plural first-person point of view, as well as a mixture. 7) The main mandate of the novel includes three things, namely; a) Intelligent understanding between qadar and taqdir, through mujahadah, endeavor, prayer, and taqarrub because a soul mate is a difficult thing to predict and part of His (Allah) provisions, b) Keep learning and studying wherever and whenever the breath is still blowing, c) Being an inspirational human being, benefiting others, equip themselves for a more eternal hereafter.