“Analysis of the Determinants of Oil Palm Harvest Workers’ Productivity Using Multiple Linear Regression: A Case Study of PTPN IV Regional 1, Bangun Estate” (2026) Jurnal Sosial Ekonomi Pertanian, 22(1), hlm. 93–101. Tersedia pada: https://journal.unhas.ac.id/index.php/jsep/article/view/52102 (Diakses: 21 Agustus 2026).