Iskandar, N., L. Damayanti, and S. Sulaeman. “Analisis Kelayakan Finansial Usaha Ayam Ras Petelur Ud. Putra Tamago Kecamatan Palu Selatan Kota Palu”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal), Vol. 7, no. 5, Oct. 2018, pp. 640 -46, http://103.245.72.23/index.php/agrotekbis/article/view/580.