Abd Rahman, H. and Mustaffar , M. Y. . (2026) “Operational Excellence through an Evaluation of a Complaint Management System: : A Case Study of Universiti Teknologi MARA”, Gading Journal for the Social Sciences (e-ISSN 2600-7568), 29(1), pp. 102–110. doi: 10.24191/gading.v29i1.726.