APRILIA, Friska Putri; RITHMAYA, Chitra Laksmi. Formulation of Standard Operating Procedures for Tickets for Sumber Gempong Tourism Management. Jurnal Riset Ekonomi, Manajemen, dan Bisnis, [S. l.], v. 2, n. 2, p. 59–66, 2025. DOI: 10.9744/jremb.2.2.59-66. Disponível em: https://ojs-isei.petra.ac.id/index.php/jrem/article/view/45. Acesso em: 21 apr. 2026.