From 1981 onwards, Inqaba ya Basebenzi published a number of supplements dealing with historical and theoretical subjects, and with perspectives. The collection here may not be complete.
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Supplement to Issue 1, January 1981
Supplement to Issue 2, April 1981
Supplement to Issue 3, July 1981
Supplement to Issue 4, October 1981
Supplement to Issue 5, January 1982
Perspective, March 1982
Supplement to Issue 6, May 1982
Supplement to Issue 7, August 1982
Supplement to Issue 8, November 1982
Supplement to Issue 9, February-April 1983
Supplement to Issue 10, May-July 1983
Supplement to Issue 11, August-October 1983
Supplement to Issue 12, November 1983 – February 1984