Novilia, Loura, Urip Harahap, and Poppy Anjelisa Z Hsb. 2017. “Effect of Red Betel (Piper Crocatum Ruiz and Pav.) Ethanol Extract Against Carbon Tetrachloride Induce Hepatic Injury In Rats”. Asian Journal of Pharmaceutical Research and Development 5 (5):1-8. https://ajprd.com/index.php/journal/article/view/341.