Kumar, Govindaraj, Chew Shu-Lyn, Goi Win, Lee Sie, Nur Fatin Lakman, and Nazmul Haque. “Comparison Between Preoperative and Post-Operative Administration of Paracetamol, Ibuprofen and Mefenamic Acid for Post-Extraction Pain Control”. Biomedical Research and Therapy 7, no. 5 (May 25, 2020): 3794-3798. Accessed August 9, 2020. http://www.bmrat.org/index.php/BMRAT/article/view/606.