Klas, L. D. “<i>The Counselling Interview Proficiency Scale:< I> The Progressive Development of a Scale for the Evaluation of Specific Counselling Interview Competencies”. Canadian Journal of Counselling and Psychotherapy 12, no. 3 (March 26, 2012). Accessed December 27, 2025. https://jhistsex.org/index.php/rcc/article/view/60179.