جبر امل مهدي, and عبدحمزة منتهى قاسم. “The Effectiveness Strategies (Orielly) & (Polya) in Achievement in the Science of Second Grade Students Is Average”. Journal of the College of Education for Girls for Humanities, vol. 3, no. 24, Sept. 2019, pp. 177-98, https://doi.org/10.36327/ewjh.v3i24.8968.