Zahedi, Mortaza, Hamid Reza Eshghizadeh, and Farzad Mondani. 2013. “Energy Use Efficiency and Economical Analysis in Cotton Production System in an Arid Region: A Case Study for Isfahan Province, Iran”. International Journal of Energy Economics and Policy 4 (1):43-52. https://econjournals.com/index.php/ijeep/article/view/574.