“ANALISA KUALITAS PELAYANAN KEAMANAN PETUGAS AVIATION SECURITY (AVSEC) TERHADAP KEPUASAN PENUMPANG DI BANDAR UDARA INTERNASIONAL ADI SOEMARMO SURAKARTA” (2019) Jurnal Optimal, 16(2), pp. 35–45. Available at: https://jurnal.stieieu.ac.id/index.php/opt/article/view/97 (Accessed: 4 October 2026).