1. Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Semarang 50275, Indonesia
2. Department of Mechanical Engineering, Universitas Muhammadiyah Semarang, Kampus Kasipah, Semarang 50254, Indonesia
3. Department of Mechanical Engineering, Sebelas Maret University, Surakarta 57126, Indonesia
4. Department of Mechanical Engineering, Universitas Negeri Semarang, Kampus Sekaran, Gunungpati, Semarang 50229, Indonesia
5. Faculty of Mechanical & Automotive Engineering Technology, Universiti Malaysia Pahang, Pekan 26600, Malaysia
6. Faculty of Engineering and Quantity Surveying, INTI International University, Nilai 71800, Malaysia