Musthafa Poyil, M., P. Karuppiah, S. S. S. Raja, and P. Sasikumar. “Isolation, Extraction, and Characterization of Verotoxin-Producing Escherichia Coli O157:H7 from Diarrheal Stool Samples”. Sudan Journal of Medical Sciences (SJMS), Vol. 17, no. 1, Mar. 2022, pp. 116-27, doi:10.18502/sjms.v17i1.10689.