Imishini yokuhlanza Ingcindezi Ephezulu: Ukuthuthukisa Ukuphepha Kwithebula Lemikhumbi Lokuqukethwe 1. Isingeniso Somshini Wokuhlanza Okuphakeme kwimikhumbi 3. Izinzuzo Zokuphepha Zomshini Wokuhlanza Okuphakeme Imikhuba Yokusebenzisa Imishini Yokuhlanza Ingcindezi Ephakeme.
