1. Department of Mechanical Engineering, Faculty of Engineering, Universitas Tidar, North Magelang, Indonesia
2. Centre for Innovation of Medical Equipment and Devices (CIMEDs), Universitas Gadjah Mada, Yogyakarta, Indonesia
3. Mechanical Engineering, Institut Teknologi Sumatera (ITERA), South Lampung, Indonesia
4. Department of Mechanical and Industrial Engineering Department, Engineering Faculty, Universitas Gadjah Mada, Yogyakarta, Indonesia