Laengkang, A. G., Ab Karim, A. R., & Haron, R. (2020). Speech Act of Commissives and Expressives: A Case Study on the Speech of Tun Dr. Mahathir in the 1MDB issue. International Online Journal of Language, Communication, and Humanities, 3(2), 73-91. Retrieved from http://insaniah.umk.edu.my/journal/index.php/insaniah/article/view/97