Othman, N. A. ., N. H. . Rahmat, F. . Ahmad, and A. P. . Bahasa. “Incorporating Blended Learning into ESL Writing Classrooms: Issues and Challenges”. American Journal of Social Sciences and Humanities, vol. 4, no. 1, Aug. 2019, pp. 222-3, doi:10.20448/801.41.222.232.