Sarwani, M. Z., A. Rahmi, and W. F. Mahmudy. “An Adaptive Genetic Algorithm for Cost Optimization of Multi-Stage Supply Chain”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 2-7, Sept. 2017, pp. 155-60, https://jtec.utem.edu.my/jtec/article/view/2611.