WASET
    Ruskartina Eki and  Vincent F. Yu and  Santosa Budi and  A. A. N. Perwira Redi,  Symbiotic Organism Search (SOS) for Solving the Capacitated Vehicle Routing Problem.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2015, vol. 101(5). 873 - 877
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10001556.