Tolandang, Yosua Jeheskiel, Jongky W.A Kamagi, and Jemmy Pangemanan. “Analisis Penerapan SOP Dalam Meningkatkan Kebersihan Kamar Di Swiss-Belhotel Maleosan Manado”. Jurnal Ilmu Sosial dan Humaniora 1, no. 3 (September 16, 2025): 1159–1174. Accessed October 31, 2025. https://indojurnal.com/index.php/jisoh/article/view/1017.