HAMKA, Hamka. Sistem Usaha Tani Terintegrasi Tanaman-Ternak. Agrikan Jurnal Agribisnis Perikanan, [S. l.], v. 3, n. 1, p. 1–8, 2010. DOI: 10.52046/agrikan.v3i1.1080. Disponível em: https://journal.tyarlyta.com/index.php/agrikan/article/view/1080. Acesso em: 22 may. 2026.