Shariat, Mohammad Ali, Soleyman Iranzadeh, and Alireza Bafandeh Zendeh. 2017. “Identification and Classification of Effective Operational Plans on Sustainable Production Using Repertory Grid and Principal Component Analysis: A Case Study on Industrial Production Companies in Semnan Province, Iran”. International Journal of Economics and Financial Issues 7 (6):82-96. https://econjournals.net.tr/index.php/ijefi/article/view/5726.