S.R.Edwin Singh, and Balakrishanan M. 2016. “Phytochemical Profile and Anti-Ulcer Activities of Extracts of Unripen Fruits of Psidium Guajava Linn by Ethanol in-Duced Ulcer Method”. International Journal of Pharmaceutics and Drug Analysis 4 (6):310-17. https://ijpda.org/index.php/journal/article/view/230.