Wasito Utomo, and Aris Wijanarko. “KAJIAN TENTANG PELAYANAN KUALITAS TERHADAP PELANGGAN JASA PENERBANGAN PT GARUDA INDONESIA”. Langit Biru: Jurnal Ilmiah Aviasi 2, no. 4 (June 30, 2009): 7-16. Accessed July 3, 2024. https://journal.ppicurug.ac.id/index.php/jurnal-ilmiah-aviasi/article/view/280.