“ANALISIS PENGARUH KUALITAS PELAYANAN TERHADAP KEPUASAN CUSTOMER PT. KIMIA FARMA TRADING AND DISTRIBUTION YOGYAKARTA”, jopt, vol. 12, no. 1, hlm. 12, Jan 2018, Diakses: Okt 04, 2026. Tersedia pada: https://jurnal.stieieu.ac.id/index.php/opt/article/view/10