Saeed Gheni Noori /Falah kadhim Dhaigham. (2021). The effectiveness of the Clear ARCS motivational model in learning the skill of bottom-facing volleyball for students. (Humanities, Social and Applied Sciences) Misan Journal of Academic Studies , 20(40), 22-31. Retrieved from http://misan-jas.com/index.php/ojs/article/view/177