ERNIS, Gustria; MALA, Donna Sagita; OKTA, Amelisa; NOTRIAWAN, Doni; FADILA, Muhammad Adeng. Nutrition Levels of Liquid Organic Fertilizer from Onion Skin (Allium cepa. L) with EM-4 Bioactivator. Sains Natural: Journal of Biology and Chemistry, [S. l.], v. 13, n. 2, p. 73–80, 2023. DOI: 10.31938/jsn.v13i2.468. Disponível em: https://ejournalunb.ac.id/JSN/article/view/468. Acesso em: 16 apr. 2026.