Aliazki Pratama, H. and Yulisa Geni, B. (2026) “Web-Based POS System to Support Perfume Sales Transactions Using the Waterfall Model: Web-Based POS System to Support Perfume Sales Transactions Using the Waterfall Model”, Journal of Information Systems and Technology Research, 5(3), pp. 343–355. doi: 10.55537/jistr.v5i3.1535.