“Efficient Algorithms to Solve Tricriteria Machine Scheduling Problem”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), vol. 46, no. 1, Oct. 2021, pp. 485-93, https://doi.org/10.55562/jrucs.v46i1.99.