QABLAN, Ahmed Barham Khalaf. 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, New Mexico, United States, 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: 24 jan. 2026.