I Gusti Ayu Ari Agung, I Nyoman Panji Triadnya Palgunadi, Putu Ayu Mahendri Kusumawati, I Gusti Agung Ayu Hartini and Dewi Farida Nurlitasari 2021. CHEWING BETEL LEAVES (Piper betle Linn.): PREVENT ORODENTAL DISEASE AND COVID-19. International Journal of Applied Science and Sustainable Development (IJASSD). 3, 2 (Sep. 2021), 46–50.