Nabena, Daniel, and Hanna Chernovita. “Strategic Planning of Information Systems at Leony Frozen Food Agents in Semarang Using Ward and Peppard Methods”. Journal of Information Systems and Informatics 4, no. 1 (March 25, 2022): 118-129. Accessed October 16, 2025. https://www.journal-isi.org/index.php/isi/article/view/229.