Madiha Riaz, Nausheen Syed, Zia-Ur-Rahman, Saeed-Ur-Rahman, and Shafqat Abbas. “APPLICATION OF DATA ENVELOPMENT ANALYSIS FOR EXPLORING BILATERAL TRADE POTENTIALS”. 2021. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 1, July 2021, pp. 4906-21, https://www.archives.palarch.nl/index.php/jae/article/view/9261.