Degree of commitment of science books in the Hashemite Kingdom of Jordan to the basic stage in grades (4-6) of the Brunner spiral model in curriculum design in plant subjects. Journal of Educational and Psychological Sciences, [S. l.], v. 3, n. 1, p. 79–65, 2019. DOI: 10.26389/AJSRP.Q160918. Disponível em: https://journals.ajsrp.com/index.php/jeps/article/view/437.. Acesso em: 19 may. 2024.