Jamaludin, Khairul Azhar, et al. “Framework for Technical Communication Skills Content Development for Students in Malaysian Vocational Colleges: A Fuzzy Delphi Study”. Journal of Technical Education and Training, vol. 11, no. 4, Sept. 2019, https://penerbit.uthm.edu.my/ojs/index.php/JTET/article/view/4500.