Choochuen, W., S. Kunlaka, A. Sarakshetrin, and P. Rattanapark. “Preventive Care for Diabetic Foot Ulcers: Application of Peplau’s Theory of Interpersonal Relations”. Ramathibodi Nursing Journal, vol. 27, no. 1, May 2021, pp. 1-14, https://he02.tci-thaijo.org/index.php/RNJ/article/view/241080.