Banihashemi, Shokoofeh, Ghasem Tohidi, and Masoud Sanei. “SENSITIVITY ANALYSIS OF EFFICIENT AND INEFFICIENT UNITS IN INTEGER-VALUED DATA ENVELOPMENT ANALYSIS”. International Journal of Mathematical Modelling & Computations 4, no. 1 (March 21, 2014): 45–53. Accessed May 9, 2026. http://oiccpress.com/ijm2c/article/view/11207.