Eko Ningtyas, Endah Aryati, et al. “Fluor Consentration After Fissured Sealent As The Time Observed With Fuji Vii As Glass Ionomer Cement”. Jurnal Riset Kesehatan, vol. 1, no. 1, Aug. 2015, pp. 23-28, doi:10.31983/jrk.v1i1.281.