1. Electrical Engineering Department, Universitas Islam Negeri Sultan Syarif Kasim, Pekanbaru, Indonesia
2. Faculty of Electronic and Computer Engineering, Universiti Teknikal Malaysia Malaka, Malaka, Malaysia
3. Department of Mathematic Educations, Faculty of Educations and Teachers Training, Universitas Islam Negeri Sultan Syarif Kasim, Pekanbaru, Indonesia