Καλίρης Α., Σιδηροπούλου - Δημακάκου Δ., Αργυροπούλου Κ., and Φακιόλας Ν. “Self-Efficacy Beliefs and Counseling Competencies of Career Counselors Providing Services in Big Enterprises and Counseling Companies”. Psychology: The Journal of the Hellenic Psychological Society, vol. 20, no. 2, Oct. 2020, pp. 230-46, doi:10.12681/psy_hps.23539.