Utomo, Tanto. “Study the Potential of Biofuels Production in Tulang Bawang, Lampung”. Inovasi Pembangunan : Jurnal Kelitbangan 3, no. 01 (April 1, 2015): 24-37. Accessed January 8, 2025. https://jurnal.balitbangda.lampungprov.go.id/index.php/jip/article/view/78.