Yeza, Mia Putri, Marsya Halya Alfrida, Fauzi Adi Saputra, Capriandika Putra Susanto, Anka Luffi Ramdani, Aditya Wicaksono, and Gema Parasti Mindara. 2025. “Application of the Waterfall Methodology in the Development of the Emcotoys System”. International Journal Software Engineering and Computer Science (IJSECS) 5 (2): 670-81. https://doi.org/10.35870/ijsecs.v5i2.4270.