Sari, Rezmelia, Lutfia Nur Sabrina, Efrin Qorina, and Aulia Nathaniela Farin. “Chitosan Gingival Mask Based on Guava Leaf Extract To Prevent Smoker’s Melanosis ”. Interdental Jurnal Kedokteran Gigi (IJKG) 22, no. 2 (August 12, 2026): 371–378. Accessed August 13, 2026. https://e-journal.unmas.ac.id/index.php/interdental/article/view/12411.