Belachew, Tesfu. “Grade Eleven Students’ Beliefs in Mathematics Education Related to Achiever Level in West Arsi Zone, Ethiopia”. Madda Walabu University Journal of Equity in Sciences and Sustainable Development, vol. 3, no. 1, Jan. 2019, pp. 51-63, https://jessdmwu.edu.et/MWU/index.php/files/article/view/57.