Department of Physics, Postgraduate of Physics Education, Postgraduate of Physics, Faculty of Mathematics and Natural Science,
Universitas Negeri Padang, Indonesia.
Address : Prof.Dr.Hamka.Rd, Air Tawar, Padang, West Sumatera, Indonesia, 25131
Phone. (0751) 7057420
Fax. (0751) 7058772
in collaboration with Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Malaysia
