Khairul, Eillya, and Mustafa M.Z. “The Relationship Between Critical Thinking and Problem--Solving Skills Among Vocational College Technical Students”. Online Journal for TVET Practitioners, vol. 9, no. 2, Oct. 2024, pp. 151-7, https://penerbit.uthm.edu.my/ojs/index.php/oj-tp/article/view/18348.