Owan, V. J. ., B. A. . Bassey, G. O. . Omorobi, and U. U. . Esuong. “Poll Everywhere E-Learning Platform, Test Anxiety, and Undergraduates’ Academic Performance in Mathematics: Empirical Evidence from Nigeria”. American Journal of Social Sciences and Humanities, vol. 5, no. 1, Jan. 2020, pp. 141-50, doi:10.20448/801.51.141.150.