Tripti Sharma, and Nigus Girmay. 2015. “Minimizing the Range of Lateness for N-Jobs, 3-Machines Sequencing Problem With Due Date, Transportation Times and Equivalent Job for Block of Jobs – A Heuristic Approach”. International Journal of Current Research in Science and Technology 1 (1), 1-7. https://crst.gfer.org/index.php/crst/article/view/1.