(i.) “Pictures of Social Discrimination: The Poetry of Oswald Mtshali” by Agbaje, David Olusegun. Published in The Literary Half-Yearly. (A Journal Devoted to Comparative Literature) Vol. XXXII No. 2, July 1991 pp. 17 – 35.
(ii.) Agbaje, David Olusegun. Excerpts on Mtshali Oswald. Modern Black Writers: Supplement. Vol. 2. Ed. Stephen R. Serafin. New York: The Continuum Publishing Co., 1995. 447-449.