Simanjuntak, Trio Agustian, Ervina Aryanti, dan Rita Elfianis. “KAJIAN KANDUNGAN HARA MAKRO VERMIKOMPOS DARI CAMPURAN DAUN KELAPA SAWIT DAN KOTORAN KAMBING MENGGUNAKAN CACING TANAH AFRICAN NIGHT CRAWLER : Study of Macronutrient Content in Vermicompost from a Mixture of Oil Palm Leaves and Goat Manure Using African Night Crawler Earthworms”. Prosiding Seminar Nasional Integrasi Pertanian dan Peternakan 4, no. 1 (Januari 29, 2026): 6–13. Diakses Mei 31, 2026. https://semnasfpp.uin-suska.ac.id/index.php/snipp/article/view/265.