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Rimpung IK, Gunung IN. Investigasi pengaruh perawatan darurat pada sistem pelumasan engine helikopter Bell 505 Jet Ranger X di PT. Urban Air Indonesia. JAMETECH [Internet]. 2022 Jul. 31 [cited 2024 Sep. 19];3(2):59-63. Available from: https://ojs2.pnb.ac.id/index.php/JAMETECH/article/view/673