Alamsyah, D. R., M. G. . Resmi, and I. . jaelani. “A DESIGN UI/UX E-LEARNING ENGLISH MOBILE USING USER CENTERED DESIGN (UCD) METHOD: English”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 7, no. 4, Oct. 2023, pp. 2434-43, doi:10.33395/sinkron.v8i4.12727.