Jackson EA. The Use of WhatsApp for Flexible Learning: Its Effectiveness in Supporting Teaching and Learning in Sierra Leone’s Higher Education Institutions. Int. J. Adv. Corp. Learn. [Internet]. 2020 Mar. 27 [cited 2024 Apr. 19];13(1):pp. 35-47. Available from: https://online-journals.org/index.php/i-jac/article/view/11381