Muharto, Muharto, Noho Ulidam, and Nurlaela Jauhar. “The Management Model of Sustainable Volunteer Tourism”. Jurnal Minds: Manajemen Ide dan Inspirasi 9, no. 2 (December 12, 2022): 253-270. Accessed November 10, 2024. https://journal3.uin-alauddin.ac.id/index.php/minds/article/view/29540.