The effect of using a learning how to learn model on the achievement of biological concepts and the development of learning and study strategies for second grade female students is average. cbej [Internet]. 2022 Dec. 20 [cited 2024 Jul. 4];15(57):1-46. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/8343