FIRMANSYAH, Vahri. Mendorong Ekonomi Daerah Kalimantan Timur Melalui Ekspor Komoditas Olahan CPO Dan Batu Bara. Jurnal Pengabdian Dharma Laksana, [S. l.], v. 4, n. 2, p. 245–252, 2022. DOI: 10.32493/j.pdl.v4i2.18240. Disponível em: https://openjournal.unpam.ac.id/index.php/jpdl/article/view/18240. Acesso em: 13 jan. 2026.