Sri Subekti, Ana A, and Mokhamad Syaom Barliana. “Communication Skills Improvement Through the Teaching Factory Model”. Online Journal for TVET Practitioners 4, no. 2 (October 30, 2019): 35-41. Accessed June 18, 2021. https://publisher.uthm.edu.my/ojs/index.php/oj-tp/article/view/5090.