Perdamaian, T. K. “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, Vol. 28, no. 2, Aug. 2019, pp. 188-95, doi:10.13181/mji.v28i2.2679.