Soewondo, P., S. Suyono, M. K. Sastrosuwignyo, A. R. Harahap, B. Sutrisna, and L. H. Makmun. “Prediction of Wound Healing in Diabetic Foot Ulcers: An Observational Study in Tertiary Hospital in Indonesia”. Acta Medica Indonesiana, vol. 49, no. 1, May 2017, pp. 41-51, https://www.actamedindones.org/index.php/ijim/article/view/348.