Suwaji, Sugianto, Arifuddin Lamusa, and Dafina Howara. “Analisis Pendapatan Petani Penyadap Getah Pinus Di Desa Tangkulowi Kecamatan Kulawi Kabupaten Sigi Sulawesi Tengah”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) 5, no. 1 (February 28, 2017): 127 - 133. Accessed November 22, 2024. http://103.245.72.23/index.php/agrotekbis/article/view/114.