Wiguna IWKS, Putra PSU, Kherismawati NPE. A Documentary Film on Bio Gas for Farmer Groups: An Implementation of Information Media. ekpresi [Internet]. 2023 Dec. 30 [cited 2025 Jan. 30];1(02):33-9. Available from: https://seaninstitute.or.id/bersinar/index.php/ekspresi/article/view/105