1. Department of Physics Education, Faculty of Teacher Training and Education, University of Pattimura, Pattimura, Jl. Ir. M. Putuhena, 97233 Campus Unpatti Poka Ambon, Indonesia
2. Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, 65145 Malang, Indonesia