Haidar, M.F. and Indriyanto, T. 2025. Identification of Sustainability Course Topics Relevant to the Needs of Airport Professionals. Langit Biru: Jurnal Ilmiah Aviasi. 18, 3 (Oct. 2025), 118–129. DOI:https://doi.org/10.54147/langitbiru.v18i3.1291.