Al-Zoubi, A. S. . . “The Effects of Using Adey & Shayer’s Modified Model in Teaching Astronomy on Improving Problem Solving Skills and Development of Divergent Thinking Skills Among Eighth Grade Students in Jordan”. Dirasat: Educational Sciences, vol. 47, no. 1, Mar. 2020, pp. 320-31, https://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/1761.