S.-Q. Yew, A. I. N. Mohd Nazan, and K.-A. Tan, “Study Protocol of a Mixed-Methods Study to Develop and Validate the Malaysian Anti-Hypertensive Agents Non-Adherence Scale in Hypertensive Patients”, Malays J Med Health Sci, vol. 18, no. 6, pp. 332–339, Nov. 2022.