Perdamaian, Teguh Kristian. “Recent Evidence on Modifiable and Non-Modifiable Risk Factors for Colorectal Cancer (CRC): A Systematic Synopsis of Meta-Analyses from 2015 to 2017”. Medical Journal of Indonesia 28, no. 2 (August 9, 2019): 188-95. Accessed April 25, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/2679.