Zou, P., M. Rajora, and S. Y. Liang. “MULTIMODAL OPTIMIZATION OF JOB-SHOP SCHEDULING PROBLEMS USING A CLUSTERING-GENETIC ALGORITHM BASED APPROACH”. International Journal of Industrial Engineering: Theory, Applications and Practice, vol. 26, no. 5, Oct. 2019, doi:10.23055/ijietap.2019.26.5.4043.