“A study on the concentration of polyphenols, flavonoids and antibacterial activity from tongue fern (Pyrrosia lingua (Thunb.) Farwell)”, pntmj, vol. 3, no. 3, Oct. 2026, Accessed: Nov. 01, 2026. Available: https://bsgdtphcm.vn/ojs/index.php/pnt/article/view/420