Saputra, T., M. Antara, and S. Sulaeman. “Analisis Titik Pulang Pokok Usaha Dampo Pisang Padai Ndustri Diana Di Kota Palu”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal), Vol. 6, no. 3, June 2018, pp. 388 -96, http://103.245.72.23/index.php/agrotekbis/article/view/373.