Kadek Budiasa Swastika, Gusti, et al. “Analisis Implementasi SOP Pada Front Office Department Hotel Holiday Inn Express Baruna”. PESHUM : Jurnal Pendidikan, Sosial Dan Humaniora, vol. 4, no. 6, Sept. 2025, pp. 8469-86, doi:10.56799/peshum.v4i6.11085.