Anti-Neoplastic and Cytotoxicity Potency Measuring of Five Medicago sativa L. (Alfalfa) Leaf Extracts Towards Melanoma (UACC62), Breast (MCF7), Prostate (PC3), and Colon (HCT116) Cancer Cells, Simon, Makhele Thapelo, Moses Makhoahle Pakiso, and Samson Mashele Sitheni , Pharmacognosy Journal, October 2023, Volume 15, Issue 5, p.768-776, (2023)