Essiett, U., & Akpan, E. (2013). Proximate Composition And Phytochemical Constituents Of Aspilia africana (Pers) C. D. Adams and Tithonia diversifolia (Hemsl) A. Gray Stems (Asteraceae). Indian Journal of Pharmaceutical and Biological Research, 1(02), 23-30. https://doi.org/10.30750/ijpbr.1.2.5