Krebs, E., G. Hurlburt, and C. Schwartz. “Vocational Self-Estimates and Perceived Competencies of Native High School Students: Implications for Vocational Guidance Counselling”. Canadian Journal of Counselling and Psychotherapy, vol. 22, no. 4, May 2011, https://cjc-rcc.ucalgary.ca/article/view/59638.