1. M100S YTC, A. P. (n.d.). Matemática 100 STRESS - YouTube [YouTube Channel]. Retrieved 26 June 2017, from https://www.youtube.com/channel/UCwNMLB6X3VJG7da6hXI4kiw
2. Motivation and Math Skills as Determinants of First-Year Performance in Economics
3. Azevedo, J., Babo, L., & Lopes, A. P. (2008). The active mathematics project at ISCAP. In International Conference on Engineering and Mathematics Proceedings. Retrieved from http://recipp.ipp.pt/handle/10400.22/591
4. Babo, L., Azevedo, J., & Lopes, A. P. (2008). The Active Mathematics Project at ISCAP. ENMA2008 - International Conference on Engineering and Mathematics.