Jermtienchai, K., and prapaiwan Danpradit. “Outcome of Self-Efficacy Enhancement Program on Knowledge and Confidence of Foot Ulcers Prevention Behavior in the Diabetic Elderly of the Puranawat Temple Elderly Club, Bangkok”. Vajira Medical Journal : Journal of Urban Medicine, vol. 66, no. 2, Apr. 2022, pp. 161-70, doi:10.14456/vmj.2022.16.