Lase, D., Sitorus, N., Sriyanto, W. and Dian Aprilyani Azir, I. (2024) “Designing Android-based Application ``Virtual English for Professional Business Graphic Designer (VIRPROGD)’’ for Virtual English Learning”, KnE Engineering, 6(1), pp. 260–273. doi: 10.18502/keg.v6i1.15374.