Latifah, N., N. Joshi, N. Kusumaning Tyas, N. Fitriani, and A. . Oktaviana. “Virtual Classroom in the Hand: Adapting an E-Learning Platform for English Language Learners”. International Journal of Language and Ubiquitous Learning, vol. 2, no. 4, Dec. 2024, pp. 500–507, doi:10.70177/ijlul.v2i4.1767.