Tatfeng, Y. M., E. H. Olama, and T. O. Ojo. “MICROBIAL BURDEN OF SOME HERBAL ANTIMALARIALS MARKETED AT ELELE, RIVERS STATE”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 7, no. 2, Nov. 2009, pp. 149-52, https://athmsi.org/journals/index.php/ajtcam/article/view/1041.