Warwas, Jasmin, Rainer Watermann, Gabriel Nagy, and Marcus Hasselhorn. “The Effect of Vocational Interest Profiles, Self-Concept and Course Level on the Development of Achievement in Mathematics and English”. Swiss Journal of Educational Research 31, no. 2 (September 1, 2009): 397–418. Accessed April 24, 2024. https://sjer.ch/article/view/5101.