https://indonesianfeministjournal.org/ https://ugcolleges.com/ https://www.bovendigoelkab.go.id/cak/ http://www.sipp.pn-nunukan.go.id/ https://journal.lemigas.esdm.go.id/public/ https://jurnal.kemendag.go.id/plugins/sob/ https://www.sipp.pn-lamongan.go.id/
1.
Melchiory Gultom R. PENGARUH PRODUKTIVITAS LAHAN DAN NILAI TAMBAH TERHADAP DAYA SAING KOMODITAS MINYAK KELAPA SAWIT INDONESIA. JEP [Internet]. 2012 Dec. 18 [cited 2025 Mar. 28];10(2):91-103. Available from: https://jep.ejournal.unsri.ac.id/index.php/jep/article/view/4903