Jafri, Muhammad Faris Ikhwan, and Karthigesu A/L Nagarajoo. 2022. “Implementation of Ball Screw Drive Mechanism in MRT Putrajaya Line Platform Screen Door”. Progress in Engineering Application and Technology 3 (2): 826–832. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/8045.