Setiawan, Ferry, Yustina Purwantiningsih, and Dhimas Wicaksono. “Schedule Planning and Maintenance Activities Auxiliary Power Unit (APU) Boeing 737-500 Aircraft With Reliability Method”. Prosiding Seminar Nasional Sains Teknologi dan Inovasi Indonesia (SENASTINDO) 3 (December 21, 2021): 91 - 102. Accessed March 28, 2024. https://aau.e-journal.id/senastindo/article/view/130.