El-Hibir, B. I. (1976). Sources of common errors in the written English of Sudanese secondary school students. University of Wales.
Chicago Style (17th ed.) CitationEl-Hibir, Babiker Idris. Sources of Common Errors in the Written English of Sudanese Secondary School Students. Cardiff: University of Wales, 1976.
MLA (8th ed.) CitationEl-Hibir, Babiker Idris. Sources of Common Errors in the Written English of Sudanese Secondary School Students. University of Wales, 1976.
Warning: These citations may not always be 100% accurate.