Julianto, I., and Y. Rindastuti. “Topical Delivery of Mesenchymal Stem Cells ‘Secretomes’ in Wound Repair”. Acta Medica Indonesiana, vol. 48, no. 3, May 2017, pp. 217-20, http://www.actamedindones.org/index.php/ijim/article/view/200.