Bulugahapitiya, V. P., S. . Kokilananthan, H. . Manawadu, and C. S. . Gangabadage. “Phytochemistry and Medicinal Properties of Psidium Guajava L. Leaves: A Review”. Plant Science Today, vol. 8, no. 4, Oct. 2021, pp. 963–971, doi:10.14719/pst.2021.8.4.1334.