Alzoubi, A. S. . (2020) “Analysis of the Content of High School Biology Textbooks in Jordan in Terms of Next Generation Science Standards (NGSS)”, Dirasat: Educational Sciences, 47(2), pp. 428–437. Available at: http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2302 (Accessed: 7 July 2024).