Supiyandi, Supiyandi, et al. “Design and Development of a Multimedia-Based Promotional Website for Digital Branding at LKP KARYA PRIMA KURSUS Using the Waterfall Method”. Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI), vol. 5, no. 1, May 2026, pp. 491-03, doi:10.62712/juktisi.v5i1.1064.