“Prevalence of Resistant Strains of Streptococcus Pneumoniae to Oxacillin, Ofloxacin and Rifampicin in Abraka South-South Nigeria”. Global Journal of Medical Research 15, no. 33 (September 21, 2015): 15–20. Accessed October 26, 2026. https://medicalresearchjournal.org/index.php/GJMR/article/view/.