Lingga, S. W. B., Fadlan, A. and 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), pp. 101–109. doi: 10.56495/ejr.v4i4.1218.