Habirun, H. and Santoso, A. (2016) “Model Frekuensi Kritis Lapisan Ionosfer Pada Kawasan Timur Indonesia”, Indonesian Journal of Physics, 13(2), pp. 90-93. Available at: https://ijphysics.fi.itb.ac.id/index.php/ijp/article/view/41 (Accessed: 20September2024).