แก้วภูมิแห่ ว. (2018) “Factors relating to the use of appropriate and safety drug behaviors of village health volunteer”., Region 11 Medical Journal, 31(1), pp. 61–71. available at: https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/166548 (accessed: 20 September 2026).