De La Ossa, Susana, Yuleima Martinez, Edwin Herazo, and Adalberto Campo. “Study of Internal Consistency and Factor Structure of Three Versions of the Zung’s Rating Instrument for Anxiety Disorders”. Colombia Médica 40, no. 1 (1): 71-84. Accessed April 24, 2025. https://colombiamedica.univalle.edu.co/colombiamedica311/index.php/comedica/article/view/629.