Kadhim Raheem, Muayad, and Lina Fouad Jawad. “The Effect Of The Perkins’ And Blythe’s Model On Mathematical Communication Among Students Of The 5Th Bio Scientific Grade In Mathematics”. Opción 350 (August 13, 2019): 907-927. Accessed September 26, 2025. http://www.produccioncientifica.luz.edu.ve/index.php/opcion/article/view/30772.