Abu Khurma, O. ., Y. Al Ramamneh, T. . Hassell, M. . Al Hammadi, S. . Zoelfakar, and Y. . Fairouz. “Quality Assurance Model in Enhancing the Professional Development Content”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 54, no. 5, Dec. 2020, pp. 49-68, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12020.