Norshahira O, Norashida SR, Lukman ZM. Content Validity Determination of the Suicidal Ideation Behaviour Assessment Instruments Using Content Validity Ratio (CVR) Formula: SUICIDAL IDEATION BEHAVIOUR ASSESSMENT. J. Drug Delivery Ther. [Internet]. 2021 Aug. 15 [cited 2026 Apr. 30];11(4-S):81-5. Available from: https://jddtonline.info/index.php/jddt/article/view/4968