Muhammad Arifin
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada
Sekip Utara, Bulaksumur, Yogyakarta 55281 Indonesia
Febrilian Dwi Laksono
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada
Sekip Utara, Bulaksumur, Yogyakarta 55281 Indonesia
Supardianningsih Supardianningsih
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada
Sekip Utara, Bulaksumur, Yogyakarta 55281 Indonesia
Kamsul Abraha
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada
Sekip Utara, Bulaksumur, Yogyakarta 55281 Indonesia