NUGRAHA, S. P. PEMANFAATAN KOTORAN SAPI MENJADI PUPUK ORGANIK. AJIE (Asian Journal of Innovation and Entrepreneurship), [S. l.], v. 2, n. 03, p. 193–197, 2013. Disponível em: https://journal.uii.ac.id/ajie/article/view/7877. Acesso em: 16 feb. 2026.