Ayim, J. A., M. T. Bayor, R. M. Phillips, S. D. Shnyder, and C. W. Wright. “The Evaluation of Selected Ghanaian Medicinal Plants for Cytotoxic Activites”. Journal of Science and Technology, Vol. 27, no. 3, Feb. 2016, doi:10.4314/just.v27i3.300.