Uyilo lwempahla ligama eliqhelekileyo, ngokwemixholo eyahlukeneyo yomsebenzi kunye nendalo yomsebenzi, inokwahlulwa ibe yimodeli yoyilo lwempahla, uyilo lwesakhiwo, uyilo lwenkqubo, intsingiselo yantlandlolo yoyilo ibhekisa "kwinjongo ethile, kwinkqubo yokucwangcisa ukusombulula." a pr...
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