Yang, Q.-H., J. Yang, G.-Z. Liu, L. Wang, T.-C. Zhu, H.-L. Gao, and X.-G. Kou. “STUDY ON IN VITRO ANTI-TUMOR ACTIVITY OF BIDENS BIPINNATA L. EXTRACT”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 10, no. 3, Mar. 2013, pp. 543-9, https://athmsi.org/journals/index.php/ajtcam/article/view/1805.