Ramlee, M. N., N. Admodisastro, N. M. Ali, and M. Azrifah. “A REVIEW OF QOS-AWARE WEB SERVICE COMPOSITION USING METAHEURISTICS APPROACH”. International Journal of Advanced Science and Technology, Vol. 28, no. 2, Sept. 2019, pp. 308 -14, http://sersc.org/journals/index.php/IJAST/article/view/494.