Majeed Aziz, Iman, y Muna Abdullah Ismail. «Evaluation Of Science Text Book For Third Primary Grade In The Light Of Criteria Of The International Content». Opción 350 (agosto 3, 2019): 2899-2921. Accedido diciembre 5, 2025. http://www.produccioncientificaluz.org/index.php/opcion/article/view/30661.