Dr.Yasser Abdul Wahid Hamid. 2020. “THE IMPACT OF EMPLOYING THE SCHWARTZ MODELON THE ACHIEVEMENT AND ANALYTICAL THINKING OF THE SECOND-GRADE STUDENTS IN SOCIAL STUDIES”. PalArch’s Journal of Archaeology of Egypt Egyptology 17 (6):14439-53. https://www.archives.palarch.nl/index.php/jae/article/view/4323.