Putra, M., and T. H. Nufus. “Studi Kasus Crew Oxygen Low Pressure Pada Pesawat Boeing 737-800”. Prosiding Seminar Nasional Teknik Mesin, vol. 12, no. 1, Dec. 2022, pp. 114-9, https://prosiding.pnj.ac.id/sntm/article/view/20.