Nunuk Aries Nurulita, Edy Meiyanto, Sugiyanto, Eishou Matsuda, and Masashi Kawaichi. 2011. “The Ethyl Acetate Fraction of Gynura Procumbens Sensitizes Widr Colon Cancer Cell Line Against 5-Fluorouracil But Shows Antagonism With Cisplatin”. International Journal of Phytomedicine 3 (3):392-405. https://ijp.arjournals.org/index.php/ijp/article/view/120.