Raehan, Muhamad, et al. “Functional Quality Evaluation of Web-Based Restaurant Point of Sales (POS) Application (Open Source) Using ISO IEC 29119 Testing Standard”. Journal of Information Systems and Business Technology, vol. 1, no. 4, Dec. 2025, pp. 143-8, https://journal.jci.co.id/jisbt/article/view/268.