Singgalen, Yerik Afrianto. “Strategic Planning of Morotai Tourism Village Information System (SIDEWITA) Using Ward and Peppard Method”. Journal of Information Systems and Informatics 5, no. 1 (March 3, 2023): 134–149. Accessed March 7, 2026. https://journal-isi.org/index.php/isi/article/view/442.