Wulandari, E., F. R. A. Wardani, N. Fatimattuzahro, and I. D. A. R. Dewanti. “Addition of Gourami (Osphronemus Goramy) Fish Scale Powder on Porosity of Glass Ionomer Cement”. Dental Journal, vol. 55, no. 1, Mar. 2022, pp. 33-37, doi:10.20473/j.djmkg.v55.i1.p33-37.