The “Labour History Group” based in Cape Town issued a series of pamphlets on the history of the working class in South Africa — more precisely, on some notable events in trade union history. For more on this group and its context, see here.
This particular pamphlet, entitled Abasebenzi Basedokisini Ekapa is a Xhosa translation of Organising at the Cape Town Docks, which you can read here. It is of especial interest for its discussion of the revolutionary syndicalist Industrial Workers of Africa in Cape Town from the late 1910s, and the rise of the massive Industrial and Commercial Workers Union of Africa (ICU), which was influenced by syndicalism (among other things).
Get the PDF here.