SEENI IBURAHIM, THAJUL MYDIN, and RD KHAIRILHIJRA KHIROTDIN. “Investigation of Directly Print Pattern on Synthetic Leather Material”. Research Progress in Mechanical and Manufacturing Engineering, vol. 2, no. 2, Jan. 2022, pp. 500-9, https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/4066.