Mohamed Zaki, Muhammad Badrul Amin, Rosnah Shamsudin, and Mohd Zulkhairi Mohd Yusoff. “Portable Biodigester System for Household Use – A Review”. Advances in Agricultural and Food Research Journal 2, no. 2 (December 4, 2020). Accessed November 24, 2024. https://hh-publisher.com/ojs321/index.php/AAFRJ/article/view/236.