Afifah SN, Lubis I. Faktor Penentu Produktivitas Tenaga Kerja Panen Kelapa Sawit, Kalimantan Timur. Bul. Agrohorti [Internet]. 2016May9 [cited 2024May17];4(2):215-23. Available from: https://jurnal.ipb.ac.id/index.php/bulagron/article/view/15024