Changpradub, W. “Efficacy of Risk Factors Management on Decreasing Systolic Blood Pressure Level in Hypertensive Patients at Bang Yai Hospital, Nonthaburi”. Journal of Health Science of Thailand, vol. 17, no. 5, Dec. 2017, pp. 783-91, https://thaidj.org/index.php/JHS/article/view/1276.