Abbas, L. M. R. ., Yaaqoub, L. A. . and mahdie, S. . (2011) “Effect of Roselle Hibiscus sabdariffah extract on some pathogenic microorganism”, Journal of Biotechnology Research Center (JOBRC), 5(3), pp. 24–31. doi: 10.24126/jobrc.2011.5.3.177.