Lingga, S. W. B., Fadlan, A., & Ramadhan, A. (2025). The Effect of Sweet Orange (Citrus sp) Cultivation on Increasing Farmers’ Income in Partibi Lama Village, Merek District, Karo Regency. EDUCTUM: Journal Research, 4(4), 101–109. https://doi.org/10.56495/ejr.v4i4.1218