khamees TH, Ali SM. the effect of (Cox and Masillas) models on the achievement of 5th secondary class pupils/ literary division in Geography. J. Tikrit U Hum. [Internet]. 2020 Aug. 28 [cited 2026 Oct. 22];27(6):423-44. Available from: https://jtuh.org/index.php/jtuh/article/view/1082