Mujayanto, R., Harijanti, K. and Hernawan, I. 2016. Topical application of 1% ZnSO4 on oral ulcers increases the number of macrophages in normal or diabetic conditions of wistar rats. Dental Journal. 49, 3 (Sep. 2016), 133–136. DOI:https://doi.org/10.20473/j.djmkg.v49.i3.p133-136.