Ir. Omry Pangaribuan, MM. “ANALISA TINGKAT KEPUASAN PELANGGAN TERHADAP PELAYANAN HOTEL ADIMULIA MEDAN”. Jurnal Sains dan Teknologi ISTP 11, no. 2 (August 6, 2021): 118–125. Accessed July 24, 2025. https://ejurnal.istp.ac.id/index.php/jsti/article/view/17.