WASITO UTOMO; ARIS WIJANARKO. KAJIAN TENTANG PELAYANAN KUALITAS TERHADAP PELANGGAN JASA PENERBANGAN PT GARUDA INDONESIA. Langit Biru: Jurnal Ilmiah Aviasi, indonesia, v. 2, n. 4, p. 7–16, 2009. DOI: 10.54147/langitbiru.v2i4.280. Disponível em: https://jurnal.overthinkingku.com/index.php/jurnal-ilmiah-aviasi/article/view/280. Acesso em: 9 may. 2026.