Purba, M., and A. Wijaya. “Perencanaan Strategis Sistem Informasi Menggunakan Metode Ward and Peppard (Studi Kasus: Oemah Djari Kitchen Salatiga)”. Journal of Information Technology Ampera, vol. 3, no. 1, May 2022, pp. 1-14, https://mail.journal-computing.org/index.php/journal-ita/article/view/143.