Nubatonis, A., Nalley, W. M., & Hine, T. M. (2018). Efektivitas Ekstrak Hipofisa Sapi terhadap Produktivitas Ayam Petelur (Gallus gallus) Afkir Strain Hisex Brown. Jurnal Sain Peternakan Indonesia, 13(3), 244–251. https://doi.org/10.31186/jspi.id.13.3.244-251