Saputra, N. G., R. Sulistiyowati, and G. K. Wijaya. “Analisis Strategi Promosi Hotel Mandarin Oriental Jakarta Post Pandemi Covid – 19”. Jurnal Sains Terapan Pariwisata, vol. 6, no. 1, Feb. 2021, pp. 70-77, https://journal.polteksahid.ac.id/index.php/jstp/article/view/251.