Muktar, Masyitahfatimah binti, and Mohd Effendi Ewan bin Mohd Matore. “VALIDATION OF PSYCHOLOGICAL WELL-BEING MEASUREMENT ITEMSUSING CONTENT VALIDITY RATIO TECHNIQUE”. The journal of contemporary issues in business and government 27, no. 2 (April 30, 2021): 6083–6095. Accessed July 13, 2025. https://www.cibgp.com/index.php/1323-6903/article/view/1499.