Cantika, Ni Putu Ayu Chandra, Ida Ayu Kalpikawati, and I Wayan Jata. 2024. “The Effect of Promotion Mix Costs on Room Occupancy Rates in Hotels in Jakarta”. Indonesian Journal of Interdisciplinary Research in Science and Technology 2 (11):1579-90. https://doi.org/10.55927/marcopolo.v2i11.11289.