Nnamchi, C. I., Okefum, V. E., Amaechi, C. D., Ugwu, K., & Nsofor, C. A. (2021). Antibacterial and Synergistic Effects of Extracts of Allium cepa, Allium sativum, Zingiber officinale and Garcinia kola on Selected Bacterial Strains: doi.org/10.26538/tjnpr/v5i4.28. Tropical Journal of Natural Product Research (TJNPR), 5(4), 763-771. https://tjnpr.org/index.php/home/article/view/679