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American Journal of Operations Research (AJOR)
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Volume 9 (2019)
Vol.9, No.1, January 2019
Vol.9, No.2, March 2019
Vol.9, No.3, May 2019
Vol.9, No.4, July 2019
Vol.9, No.5, September 2019
Vol.9, No.6, November 2019