Norashida SR, Norshahira O, Lukman ZM. Content Validity of Drug Addiction Recovery Test Instruments Using Content Validity Ratio (CVR) Method. J. Drug Delivery Ther. [Internet]. 2021 Jul. 15 [cited 2026 Jan. 21];11(4):24-9. Available from: https://jddtonline.info/index.php/jddt/article/view/4949