[1]
Rangkuti, Y.M., Side, S. and Noorani, M.S.M. 2014. Numerical Analytic Solution of SIR Model of Dengue Fever Disease in South Sulawesi using Homotopy Perturbation Method and Variational Iteration Method. Journal of Mathematical and Fundamental Sciences. 46, 1 (Apr. 2014), 91-105. DOI:https://doi.org/10.5614/j.math.fund.sci.2014.46.1.8.