Abdelkafe, A. S. ., El-Ghareeb, K. . and Nasib, M. A. . (2009) “investigation on bacterial causes of infants upper respiratory tract infections in El-Gabal Alakhdar region-Libya”, Al-Mukhtar Journal of Sciences. Al Bayda, Libya, 24(1), pp. 41–55. doi: 10.54172/mjsc.v24i1.423.