MAHMUD, A.; BUSONO, W.; SURJOWARDOJO, P. REPRODUKSI SAPI PERAH FRIESIAN HOLSTEIN PADA BERBAGAI PERIODE LAKTASI. JURNAL ILMIAH PETERNAKAN TERPADU, [S. l.], v. 6, n. 1, p. 89–92, 2018. DOI: 10.23960/jipt.v6i1.p89-92. Disponível em: https://jurnal.fp.unila.ac.id/index.php/JIPT/article/view/2736. Acesso em: 28 nov. 2025.