Permono, Hendarti, et al. “Influence Cognitive Strategies, Metacognitive Strategies And Experience Success In Mathematics Achievement Through Self-Efficacy In V Grade Elementary School In East Jakarta”. International Review of Management and Marketing, vol. 9, no. 5, Sept. 2019, pp. 46-51, https://econjournals.net.tr/index.php/irmm/article/view/8558.