SALUDIN, M.N. and KIAN, T.P. 2010. THE IMPORTANCE OF CUSTOMER SATISFACTION AND CUSTOMER COMPLAINT TOWARDS A BETTER QUALITY SERVICE USING SIX SIGMA: AN ACADEMIC PERSPECTIVE. Sains Humanika. 53, 1 (Aug. 2010). DOI:https://doi.org/10.11113/sh.v53n1.253.