Agung Budi Prakoso
Physics Department, Faculty of Science and Mathematics, Universitas Sebelas Maret
Jl. Ir. Sutami 36A Kentingan Jebres Surakarta 57126 Indonesia
A Suparmi
Physics Department, Faculty of Science and Mathematics, Universitas Sebelas Maret
Jl. Ir. Sutami 36A Kentingan Jebres Surakarta 57126 Indonesia
C Cari
Physics Department, Faculty of Science and Mathematics, Universitas Sebelas Maret
Jl. Ir. Sutami 36A Kentingan Jebres Surakarta 57126 Indonesia