Waluyani, Risma Candra, Bambang Subroto, and Bambang Purnomosidhi. “Effect of External Factors of Technology Acceptance Model Toward Technology Acceptance of Online Travel Agent”. Jurnal Economia 14, no. 2 (October 1, 2018): 158–176. Accessed June 4, 2025. https://journal.uny.ac.id/index.php/economia/article/view/20745.