WASET
Panah, E. , Babar, M.. "A Survey of WhatsApp as a Tool for Instructor-Learner Dialogue, Learner-Content Dialogue, and Learner-Learner Dialogue". World Academy of Science, Engineering and Technology, Open Science Index 168, International Journal of Educational and Pedagogical Sciences, (2020), 14(12), 1198 - 1205.