Lesi iphunga eliyingqayizivele, esomisa ngokushesha isifutho somzimba wabesifazane
1. Sebenzisa ifomula eyomile esheshayo.Kuyaqabula futhi kuyaphefumula.Valelisa kumuzwa onamathelayo
2. Gcina isikhumba somile futhi ukhiphe iphunga lomjuluko
3. Ifomula ebonisa ngale, akulula ukushiya amabala amhlophe noma amabala aphuzi ezingutsheni noma esikhumbeni ngemva kokusetshenziswa.