RB, Linda, Nurbaeti, Nurbaeti, Asmaniati, Fetty, Rachmatullah, Adam, DAN Atmadja, Valencia. " The Influence of Price and Instagram Social Media Promotion on Purchase Decisions at Rumangsa Coffee and Bakery, Hotel Ra Premiere Jakarta" Jurnal Penelitian Pariwisata [Online], Volume 7 Nomor 1 (14 April 2023)