This article discusses effective sentences in Indonesian for successful communication, particularly in two common situations encountered in professional and educational environments. Case analyses involve examining real-life cases from various communication situations in daily life. These cases may include situations in both professional and educational settings. This analysis will assist researchers and readers in understanding the application of effective communication concepts in practical contexts, as well as reinforce understanding of the importance of effective sentences in communicating in the Indonesian language.

This study aims to: (1) describe the sense of ekopuitika theory; (2) describe the working mechanism of ekopuitika theory; and (3) describe the application of the ekopuitika theory in the oral literature.
The theory used in this research is  ekopuitika theory, ecology theory, and poetics theory.
The data collecting technique or data collection process utilized in this research are as follows: (1) recording technique, either audio or audiovisual, (2) notes, (3) rooted interview, (4) literature study and documentation analysis.
The finding of the research is (1) the meaning ekopuitika theory is literary theory/knowledge of poetry which is associated with the environment. (2) the working mechanism is started from analyzing the poetics theory which consists of: 1. Sound that includes: a) rima; (b) assonance; (c) alliteration; (d) anaphora; (e) efoni; (f) kakafoni; and (g) onomatopoeic. 2. Rime (metrum and rhythm) 3. Word includes: (a) vocabulary; (b) diction; (c) figurative language; (d) imagery; and (e) linguistic factors. 4. Phrase that includes: (a) nominal phrases; (b) verbal phrase; (c) the numeral phrase; (d) the adverb phrase; and (e) the prepositional phrase. 5. Sentence/array includes: (a) declarative sentences; (b) interrogative sentences; (c) the imperative sentence; and (d) the exclamatory sentence. 6. The discourse that includes: (a) cohesion and (b) coherence.
The next how it works, is further analyzed once more with the ecology theory that includes: (a) the representation of nature: plant, animal, mountain, water, sea, land, air, sun, and sky; (b) the manifestation of the representation of behavior: traditional event (ritual), religion, knowledge, cosmology, language, myth, art, moral, and housing.




After the ekopuitika theory applied in the oral literature there was a result that evidently for the representation of nature related to the plant and animal, while for the representation of the behavior associated with the traditional event (ritual) and language.

Performance Semiotics in Dramatic Performance is a study of the semiotics of theater or stage performances related to the theory of signs and sign systems in the performing arts called theater. Theater semiotics tries to understand the components of theater and establishes the assumption that everything within the framework of theater is a sign or sign. Theatrical performances are essentially a series of sign systems.
This study aims to: (1) reveal the process of creating and presenting the performance art of the Mental Ill Ballad Drama, (2) reveal signs related to the activities of the Mentally Ill Ballad Drama performance actors, (3) reveal signs related to the appearance of the Mentally Ill Ballad Drama performance actors Jiwa, (4) reveals signs related to the spatial aspect or place of the performance of the Mentally Ill Ballad and (5) reveals signs related to the non-verbal acoustic aspects of the Mentally Ill Ballad's performance.
This research was carried out at the Campus of the Indonesian Language and Literature Education Study Program, Department of Language and Arts Education, FKIP, Palangka Raya University, Central Kalimantan Province. The object of research is students who practice theater and perform theater. This study involved (1) lecturers who taught the Drama/Theatre Performance course, (2) drama/theatre arts workers, and (3) students who practiced and performed plays/theatre. Data collection techniques in this field research are observation, recording, recording, and interviews. The collected data will be analyzed using the theory of Performance Semiotics.
The performance semiotics contained in the performance of the drama Balada Illness, are: (1) signs related to the process of creating and presenting performing arts, (2) signs related to actor activities, (3) signs related to actor appearances, (4) signs related to spatial aspects, and (5) signs related to non-verbal acoustics.