Okafor, Vincent Nwalieji, Regina Igwe Anyalebechi, and Ugochukwu Wilson Okafor. 2016. “Characterization of Hop Extracts and Extracts from Some Selected Nigerian Plants by GC-MS and Brewing Qualities Analyses”. IJRDO-Journal of Applied Science 2 (9), 39-64. https://doi.org/10.53555/as.v2i9.1404.