1. Faculty of Mathematics and Natural Sciences, Department of Physics, Institut Teknologi Bandung, Bandung, Indonesia
2. Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand
3. Physics Study Program, Department of Science, Insititut Teknologi Sumatera, Lampung, Indonesia
4. Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabat University, Nakhon Pathom, Thailand