David Koko E. C. O. Naibaho, Sukaria Sinulingga, and Nazaruddin Nazaruddin. “ANALYSIS OF FACTORS INFLUENCING THE VALUE OF 3 STAR HOTELS IN MEDAN CITY”. Journal of Innovation Research and Knowledge 2, no. 7 (December 20, 2022): 2933–2938. Accessed July 6, 2025. https://mail.bajangjournal.com/index.php/JIRK/article/view/4277.