Khwuta , Yoseph Dominikus Da Yen, Maria Adelvin Londa, and Yohanes Ardianus Wee. 2023. “Designing and Building a Business Data Collection Application Using the Waterfall Method”. Matrix : Jurnal Manajemen Teknologi Dan Informatika 13 (1):42-51. https://doi.org/10.31940/matrix.v13i1.42-51.