Singgalen, Yerik Afrianto. “Strategic Planning for Student Guidance Information System Design in Tourism Department Using Ward and Peppard Framework”. Journal of Information Systems and Informatics 5, no. 2 (May 13, 2023): 481–496. Accessed March 13, 2026. https://www.journal-isi.org.adsii.or.id/index.php/isi/article/view/486.