Kaharuddin, and Muhammad Hasyim. “The Speech Act of Complaint: Socio-Cultural Competence Used by Native Speakers of English and Indonesian”. International Journal of Psychosocial Rehabilitation 24, no. 6 (August 31, 2020): 14016–14028. Accessed December 19, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/8301.