Ratnasari, Kania, and Susy Bhudiharty. “THE PERCEPTION OF TOURIST ELDERLY VISIT TO ANCOL”. JRMSI - Jurnal Riset Manajemen Sains Indonesia 8, no. 2 (September 28, 2017): 194–208. Accessed April 29, 2025. https://journal.unj.ac.id/unj/index.php/jrmsi/article/view/3832.