Sanatan Ratna, B Kumar. “Assessing the Barriers in Implementing Sustainable Supply Chain Management Practices: An ISM Approach ”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 17, no. 9, Dec. 2020, pp. 6980 -87, https://archives.palarch.nl/index.php/jae/article/view/5312.