Reedtz, Charlotte, and Monica Martinussen. “The Psychometric Properties of the Norwegian Version of Eyberg Child Behavior Inventory (ECBI)”. PsykTestBarn 1, no. 1 (November 30, 2011): 1–9. Accessed August 28, 2026. https://septentrio.uit.no/index.php/psyktestbarn/article/view/7548.