Agung Bella Putra Utama Department of Electrical Engineering and Informatics, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang no. 5, Malang 65145 Indonesia
Syaad Patmanthara Department of Electrical Engineering and Informatics, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang no. 5, Malang 65145 Indonesia
Aji Prasetya Wibawa Department of Electrical Engineering and Informatics, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang no. 5, Malang 65145 Indonesia
Gülsün Kurubacak Department of Distance Education, Anadolu University College of Open Education, Yeşiltepe, Tepebaşı/Eskişehir 26470 Turkey