Nofi Nofrial Students of Master Technology and Vocational Education, Faculty of Engineering
State University of Padang, Padang 25 132, Indonesia Indonesia
Department of Technology and Vocational Education
Nurhasan Syah Lecturer of Technology and Vocational Education
State University of Padang, Padang 25 132, Indonesia
Wawan Purwanto Lecturer of Technology and Vocational Education
State University of Padang, Padang 25 132, Indonesia