I Gusti Ayu Ari Agung, I Nyoman Panji Triadnya Palgunadi, Putu Ayu Mahendri Kusumawati, I Gusti Agung Ayu Hartini, and Dewi Farida Nurlitasari, “CHEWING BETEL LEAVES (Piper betle Linn.): PREVENT ORODENTAL DISEASE AND COVID-19”, IJASSD, vol. 3, no. 2, pp. 46–50, Sep. 2021.