Saleh, Yanti, et al. “Rice Farming and Farmer Income: A Case Study at Kota Utara Sub District, Gorontalo Province”. Jurnal Perspektif Pembiayaan Dan Pembangunan Daerah, vol. 5, no. 2, Dec. 2017, pp. 71-80, doi:10.22437/ppd.v5i2.4418.