SUKOCO, Ibnuh; AFIFUDDIN, Sya'ad; SYAFII, M. Analysis of Factors Influencing Palm Oil Farmers’ Income of Production in the Labuhanbatu Regency. Quantitative Economics and Management Studies, [S. l.], v. 5, n. 1, p. 32–42, 2023. DOI: 10.35877/454RI.qems2238. Disponível em: https://qemsjournal.org/index.php/qems/article/view/2238. Acesso em: 13 jun. 2026.