IDA RAHAYU. “ANALISIS PENERAPAN STANDAR OPERASIONAL PROSEDUR (SOP) PRAMUSAJI DI DE CLIFF CAFE DE BINTAN VILLA”. JURNAL EKONOMI, SOSIAL & HUMANIORA, Vol. 6, no. 02, July 2024, pp. 237-46, https://jurnalintelektiva.com/index.php/jurnal/article/view/1075.