Effects of Eurycoma Longifolia Jack (Tongkat Ali) Alcoholic Root Extract Against Oral Pathogens, Alloha, Irani Binti, Aziz Nurul ?Ain Liy, Faisal Ghasak Ghazi, Abllah Zurainie, and Arzmi Mohd Hafiz , Pharmacognosy Journal, October 2019, Volume 11, Issue 6, p.1299-1302, (2019)