Sari, Y., I. Purnawan, and H. Hartono. “Modification of Breast Pump As a Negative Pressure Wound Therapy for Accelerating Wound Healing of Diabetic Ulcer”. Jurnal Ners, vol. 10, no. 1, Apr. 2015, pp. 104-11, doi:10.20473/jn.v10i1.2037.