Hutajulu, Josua Parulian, and Yuli Arif Tribudi. 2019. “endapatan eluarga etani ari eternak ambing i ecamatan asau aya abupaten ubu aya alimantan arat”. urnal ains eternakan 7 (1):22-28. https://doi.org/10.21067/jsp.v7i1.3608.