., S., M. ., D. A. Sudjimat, and E. H. Sujiono. “Perception of Productive Teacher Major in Mechanical and Automotive Engineering to the Teaching Factory Implementation at Vocational High School in South Sulawesi, Indonesia”. The International Journal of Humanities & Social Studies, vol. 5, no. 9, Sept. 2017, http://www.internationaljournalcorner.com/index.php/theijhss/article/view/125688.