D. B. Santoso, E. Y. Arvianti, and B. Santosa, “Analysis of The Efficiency of The Use of Production Factors And Income in Sugarcane Farming (Case Study of Independent Sugarcane Farming in Kedungjajang Sub-District, Lumajang District”, IRDH IJTANS, vol. 2, no. 2, pp. 71–84, Jul. 2025.