fadhil, Nael hashim. “The Effectiveness of the Four Pillars and Hot Chair Strategies in Productive Thinking in Biology for Female Students of the Fourth Scientific”. Journal of Tikrit University for Humanities 29, no. 1, 3 (January 30, 2022): 361–375. Accessed June 2, 2026. https://jtuh.org/index.php/jtuh/article/view/1804.