Shirzad, Galin. “Negative and Positive Perfectionism As Predictors of Procrastination in Female High School Students in Tehran, Iran”. Global Journal of Psychology Research: New Trends and Issues 7, no. 1 (September 25, 2017): 28–34. Accessed May 7, 2024. https://un-pub.eu/ojs/index.php/gjpr/article/view/2433.