Melati, D., and A. M. Mulki. “Implementasi Strategi Promosi Di Hotel Mercure Gatot Subroto Jakarta”. Jurnal Sains Terapan Pariwisata, vol. 6, no. 3, Oct. 2021, pp. 137-49, https://journal.polteksahid.ac.id/index.php/jstp/article/view/164.