Jose Benny. A and Berlin Grace. V. M. 2020. “Natural Remedy for Human Papilloma Virus (HPV) Infected Uterine Cervical Cancer Cells: Thuja Orientalis Linn Leaf Extract and ATRA Combination Serve As A Potential Chemo-Preventive Drug for HPV18 Infected Cervical Cancer”. International Journal of Advanced Science and Technology 29 (11s), 540 -47. http://sersc.org/journals/index.php/IJAST/article/view/20013.