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Learning is a process of communication between students, teachers and teaching materials. The delivery of learning messages from teachers to students is currently still using teaching aids in the form of books. This makes students less interested and feel bored when absorbing lessons, so that it gives the effect of being lazy to learn. This study designed mobile based 2D animation as an interactive learning tool for learning materials for human organs based on mobile android. This study uses the waterfall method in conducting research which includes the stages of planning, analysis, design, implementation and testing. Based on the research results, this 2D animation learning media makes it easy for students to study material about human organs that cannot be seen directly. This animation has several elements such as text, audio, video and animated images so that it attracts students' attention to feel happy in learning compared to conventional ways

The purpose of this study was to determine the effect of the forensic accounting and audit investigations in detecting fraud procurement of goods and services. The rise of fraud cases in Indonesia, one of which is fraud related to public needs, namely the procurement of goods and services. This is reminiscent of the real threat of fraud in the form of corruption in the procurement of goods and services that can cause poor quality of goods / services produced so that they cannot serve the public interest effectively and efficiently. In this context, the community is the most disadvantaged party. Collecting data in this study through the distribution of questionnaires with a total sample of 34 auditor respondents in the field of Investigation of the Badan Pemeriksa Keuangan dan Pembangunan DKI Jakarta. This research uses PLS (Partial Least Square) analysis technique, using SmartPLS software testing tool version 3.2.8. The results of this study indicate that the results of the analysis of the application of forensic accounting and investigative audits have a significant effect in detecting fraud procurement of goods / services.

Based on the results of observation, the learning method used in SMP Muhammadiyah 3 Kaliwungu is in the form of discourse, discussions, question and answer with the book media. Learning methods that have been applied so far have not had enough impact on students' level of understanding. The method used is less successful, so students feel bored and bored. This study offers a solution for multimedia utilization with the Mind Map method as an interesting learning media, where computers can display text, images, videos and audio so that students can have a pleasant impression in the learning process. The validity value of media experts is 2.9 which is declared feasible, while the validity value of material experts is 3.3, which is declared feasible, and increases students' understanding and interest as users from 58.5% up to 80.5%.