7Ahmed, W., van der Werf, G., Kuyper, H., & Minnaert, A. (2013). Emotions, self - regulated learning, and achievement in mathematics: A growth curve analysis. Journal of Educational Psychology, 105, 150 - 161.
8Ferla, J. , Valcke, M. , & Cai , Y. H. (2009). Academic self - efficacy and academic self - concept: Reconsidering structural relationships. Learning and Individual Differences, 19,499 - 505.
9Frenzel, A. C. , Pekrun , R. , & Goetz, T. (2007). Girls and mathematics-A "hopeless" issue? A control - value approach to gender differences in emotions towards mathematics. European Journal of Psychology of Education, 22, 497 - 514.
10Frenzel, A. C., Thrash, T. M., Pekrun, R. , & Goetz, T. (2007). Achievement emotions in Gennany and China : A cross - cultural validation of the academic emotions questionnaire - mathematics. Journal of Cross - Cultural Psychology, 38 , 302 -.309.
