SALUDIN MN, KIAN TP. THE IMPORTANCE OF CUSTOMER SATISFACTION AND CUSTOMER COMPLAINT TOWARDS A BETTER QUALITY SERVICE USING SIX SIGMA: AN ACADEMIC PERSPECTIVE. SH [Internet]. 2010 Aug. 15 [cited 2024 May 19];53(1). Available from: https://sainshumanika.utm.my/index.php/sainshumanika/article/view/253