1. Adams, N. E. (2016). Dialog About Psychosocial Issues in Problem-Based Learning Sessions in Medical Education (doctoral dissertation). Retrieved from ETDA libraries Pennsylvania State University. (accession no. 13439).
2. Al-Mutawah, M. A., & Fateel, M. J. (2018). Students' achievement in math and science: How grit and attitudes influence? International Education Studies, 11(2), 97–105.
3. Annalakshmi, N., & Venkatesan, M. (2018). Perceived discrimination among students in higher education. Indian Journal of Health & Wellbeing, 9(5), 761–769.
4. Asparouhov, T., & Muthén, B. (2012). Using Mplus TECH11 and TECH14 to test the number of latent classes. Mplus Web Notes, 14(22), 1–17.
5. Bazelais, P., Lemay, D. J., & Doleck, T. (2016). How Does Grit Impact College Students’ Academic Achievement in Science? European Journal of Science and Mathematics Education, 4(1), 33–43.