Cao, Y. ., M. N. H. M. . Said, M. F. A. . Hanid, and R. . Zhu. “The Effect of WeChat on Promoting Foreign Students’ Chinese Language Learning: A Systematic Literature Review”. International Journal of Learning, Teaching and Educational Research, vol. 24, no. 5, May 2025, pp. 753-69, http://ijlter.myres.net/index.php/ijlter/article/view/2340.