Thongcharoen, Vilaivan, Chantana Ronnarithivichai, Somjin Peachpansri, Natsurang Boonchun, and Vorawan Vanicharoenchai. 2011. “Effectiveness of Knowledge Management on Knowledge and Management of Hypertension in Elderly”. Nursing Science Journal of Thailand 29 (3):103-12. https://he02.tci-thaijo.org/index.php/ns/article/view/2872.