Mustapha, R. A., Idowu, G. A. and Ajetunmobi, M. O. (2018) “On the Solution of Some Vibration Problems Using Variational Iteration Method.”, International Journal of Mathematical Sciences and Optimization: Theory and Applications, 20180, pp. 321 - 337. Available at: http://ijmso.unilag.edu.ng/article/view/48 (Accessed: 3May2024).