Agnes, Angelina, and Agustinus Fritz Wijaya. “Information System Strategic Planning Using Ward and Peppard Methodology (Case Study: Nusatovel Salatiga): Perencanaan Strategis Sistem Informasi Menggunakan Metodologi Ward Dan Peppard (Studi Kasus: Nusatovel Salatiga) ”. Journal of Information Systems and Informatics 2, no. 2 (September 3, 2020): 246–255. Accessed March 7, 2026. https://www.journal-isi.org/index.php/isi/article/view/69.