Ayu Sandra Dewi (Department of Automotive Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, Indonesia)
Ibnu Siswanto (Department of Automotive Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, Indonesia)
Tafakur Tafakur (Department of Automotive Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, Indonesia)
Kir Haryana (Department of Automotive Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia, Indonesia)