Sarbaini, Sarbaini, et al. “Profil Populasi Sapi Pesisir Di Kabupaten Pesisir Selatan Sumatera Barat”. Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science), vol. 12, no. 3, Oct. 2007, pp. 206-12, doi:10.25077/jpi.12.3.206-212.2007.