MADUABUCHI UPO and OKEREKE AMOS HUYGENS, E.E.B.N.B.C.A.C.B.O.S.M. 2021. PHYTOCHEMICAL SCREENING AND ANTIBACTERIAL ACTIVITY OF CRUDE EXTRACTS OF BITTER LEAVES (Vernonia amygdalina) AND BOUNDARY TREE (Newbouldia laevis). International Invention of Scientific Journal. 5, 11 (Nov. 2021), Page: 1–9.