Vanzandt, C. E. & Hayslip, J . B. (1994). <i>Your Comprehensive School Guidance and Counseling Program: A Handbook of Practical Activities.</i>

Millar, G. W. (2007). Vanzandt, C. E. & Hayslip, J . B. (1994). <i>Your Comprehensive School Guidance and Counseling Program: A Handbook of Practical Activities.</i>. Revue Canadienne De Counseling Et De psychothérapie, 30(3). Consulté à l’adresse https://dev.journalhosting.ucalgary.ca/index.php/rcc/article/view/59353