Nugroho, Tri Wahyu, et al. “E-Ticket Application Integration of Yogyakarta Tourism Mode”. Jurnal Perintis: Pengembangan Riset Inovatif Teknik, Teknologi, Dan Sains, vol. 2, no. 2(Maret-April), Apr. 2026, pp. 48-54, https://ejournal.pktj.ac.id/index.php/perintis/article/view/94.