Variation of Bio-Activators (EM-4 and Leri Water) in Processing Household Organic Waste into Organic Compost Ready to Use in Gebang Putih Surabaya. nuscientech [Internet]. 2022 Nov. 22 [cited 2025 Apr. 24];:58-62. Available from: https://nstproceeding.com/index.php/nuscientech/article/view/759