Ardiyanti AD, Adhitama L, Wahyutiyani R. Efficient Compost Fertilizer with Addition of Fatty Acid Results of Used Cooking Oil Saponification Reaction. icse [Internet]. 2020 Apr. 30 [cited 2025 Jan. 21];3:125-8. Available from: http://sunankalijaga.org/prosiding/index.php/icse/article/view/483