Alvi Rizqi Amaliyah, Arwin Diva Nafida, Berta Ivana Priladiantika and Bambang Tri Hartomo 2022. Differences of Composite Resin Surface Hardness After Exposure to Filter Cigarette and Electric Cigarette Smoke. DENTA JURNAL KEDOKTERAN GIGI. 16, 2 (Aug. 2022), 67–73. DOI:https://doi.org/10.30649/denta.v16i2.2.