Wulandari, H., and S. Suherman. “Design Of a Website-Based Information System for Optimizing UMKM Product Marketing Using the Waterfall Method”. Jurnal Ilmiah Multidisiplin Indonesia (JIM-ID), vol. 5, no. 08, July 2026, pp. 2099-07, https://ejournal.seaninstitute.or.id/index.php/esaprom/article/view/8898.