Dr. Ganefo Ginting, MM, Personnel Education and Training Center: Ministry of Education, Culture, Research and Technology, Jakarta, Indonesia

Suryani Manurung, SE., M.Pd, Center for Quality Assurance Development of Vocational Education in Construction and Electricity, Medan, Indonesia

Prof. Dr. Dearlina Sinaga, MM., Department of Economics Educational, Faculty of Teaching and Educational Sciences, Universitas HKBP Nommensen, Medan, Indonesia

Prof. Dr. Abdorrakhman Gintings, M.Si., Ph.D, University of Langlangbuana, Bandung, Indonesia

Prof. Dr. Effendi Napitupulu, M.Pd., Medan State University, Medan, Indonesia

Dr. Mian Siahaan, MM., Department of Economics Educational, Faculty of Teaching and Educational Sciences, Universitas HKBP Nommensen, Medan, Indonesia

Surya Darma Pardede, S.Pd., MM., Department of Economics Educational, Faculty of Teaching and Educational Sciences, Universitas HKBP Nommensen, Medan, Indonesia

Dr. Sofian Matondang, MM., University of Prima Indonesia, Medan, Indonesia