Sipayung, Sinta, Hariadi T.E, Nurzaman A, and Eddy Hermawan. “The Spectrum Analysis of Rainfall in Indonesia”. Indonesian Journal of Physics 14, no. 3 (November 3, 2016): 93-106. Accessed November 21, 2024. https://ijphysics.fi.itb.ac.id/index.php/ijp/article/view/87.