Mohamad, Arifha, and INTAN NURJANNAH MOHAMED SABRI. “Impact of Total Quality Management on Customer Satisfaction for Malaysia’s Telecommunication Sector in Selangor”. Research in Management of Technology and Business, vol. 3, no. 1, June 2022, pp. 1021-9, https://penerbit.uthm.edu.my/periodicals/index.php/rmtb/article/view/7230.