Maria Theresia Kaban, and Suprapti. “Analisis Penangan Petugas Check-In Terhadap Penumpang Khusus Dibandar Udara Adi Soemarmo Surakarta”. Jurnal Kajian dan Penelitian Umum 1, no. 4 (July 20, 2023): 84–94. Accessed September 20, 2024. https://e-journal.nalanda.ac.id/index.php/jkpu/article/view/369.