مهدي يونس الخفاجي و. The Effect of Using Learning Cycle on the Acquisition of Biological Concepts by First Year Students Science Department/College of Basic Education- Mosul University. College of Basic Education Research Journal, [S. l.], v. 9, n. 4, p. 101–130, 2010. Disponível em: https://moss.uomosul.edu.iq/index.php/berj/article/view/38206. Acesso em: 26 oct. 2025.