Prof. Dr. Supriyadi Supriyadi, [SCOPUS ID: 57189681689] Department of Physics, Universitas Negeri Semarang, Indonesia

Dr. Masturi Masturi, [SCOPUS ID: 54791096900] Department of Physics, Universitas Negeri Semarang, Indonesia

Dr. Ellianawati Abdul Rozak, Department of Physics, Universitas Negeri Semarang, Indonesia