Reviewers

1. Assoc. Prof. Dr. Hawkar Jalal Muhammed, Technical Engineering College, Sulaimani Polytechnic University, Kurdistan, Iraq
2. Assoc. Prof. Dr. Jamal Eldin F.M. Ibrahim, University of Miskolc, Miskolc, Hungary
3. Assoc. Prof. Dr. Muklis, Department of Mechanical Engineering Khairun University, Ternate, North Maluku
4. Assoc. Prof. Dr. Prihanto Trihutomo, ST, MT, Department of Mechanical Engineering, State University Malang, Malang City, Indonesia
5. Assoc. Prof. Dr. Sukanto, ST, MT, Department of Mechanical Engineering, Politeknik Manufaktur Negeri Bangka Belitung, Bangka, Bangka Belitung Islands
6. Assoc. Prof. Dr. Ir. Rustan Hatib, ST.MT Department of Mechanical Engineering, Tadulako University Sulawesi, Sulawesi Central,
7. Assoc. Prof. Si Putu Gede Gunawan Tista, Department of Mechanical Engineering, Udayana University, Bali Indonesia
8. Assoc. Prof. Dr. Zuliantoni, Department of Mechanical Engineering, Bengkulu University, Bengkulu, Indonesia
9. Assoc. Prof. Dr. A. Grummy Wailanduw, Department of Mechanical Engineering, Universitas Negeri Surabaya, Surabaya City, Indonesia.
10. Assoc. Prof. Dr. Satryo Budi Utomo, ST., MT, Department of Electrical Engineering, Jember University, Jember City, Indonesia
11. Dr. Mochamad Arif Irfa'i, S.Pd., M.T., Department of Mechanical Engineering, Universitas Negeri Surabaya, Surabaya City, Indonesia.