Yusriany, R., M. H. Cangara, C. Kaelan, G. Asyadi, N. K. Sungowati, A. Ihwan, R. M. Rosyidi, and A. A. Zainuddin. “Relationship Between Mitotic Index and Ki67 Expression in Meningioma”. International Journal of Research in Medical Sciences, vol. 7, no. 9, Aug. 2019, pp. 3540-5, doi:10.18203/2320-6012.ijrms20193944.