Widowati, K., T. Berniyanti, and R. P. Rahayu. “Apoptosis of Rattus Novergicus Gingival Fibroblasts Caused by Silver Nano-Particles Gel Exposure”. Dental Journal, vol. 48, no. 3, Sept. 2015, pp. 135-8, doi:10.20473/j.djmkg.v48.i3.p135-138.