Sarion, Arbain, Ummi Salwa Ahmad Bustamam, and Amir Shaharudin. 2015. “TOWARDS MS1900:2005 QUALITY MANAGEMENT SYSTEM FROM ISLAMIC PERSPECTIVE: A CASE STUDY AT MACS”. UMRAN - International Journal of Islamic and Civilizational Studies 2 (1). https://doi.org/10.11113/umran2015.2n1.16.