Suteky, T., Dwatmadji Dwatmadji, and E. Soetrisno. “The Potential Used of Humic Substance As Natural Organic Additives For Ruminants: A Review”. Jurnal Sain Peternakan Indonesia 18, no. 1 (March 31, 2023): 64–70. Accessed May 8, 2024. https://ejournal.unib.ac.id/jspi/article/view/26740.