“THE EFFECT OF SELLING PRICE AND PRODUCTION COSTS ON CORN FARMERS INCOME IN SEMANDING, KAWEDUSAN VILLAGE, PONGGOK SUB-DISTRICT”. JOSAR (Journal of Students Academic Research), vol. 5, no. 2, Sept. 2020, pp. 8-16, https://doi.org/10.35457/josar.v5i2.1141.