“KONTRIBUSI PERSEPSI HARGA DAN KUALITAS TERHADAP INTENSI PEMAKAIAN JASA PENERBANGAN DI YOGYAKARTA”. Jurnal Optimal 13, no. 1 (January 19, 2018): 11. Accessed October 4, 2026. https://jurnal.stieieu.ac.id/index.php/opt/article/view/21.