I-alamu yokuzivikela, Uma kunengozi noma isimo esiphuthumayo, vula iswishi bese ukhala ngokushesha i-alamu enedecibel ephezulu, umlayezo wokulandelela izimo eziphuthumayo kanye nocingo oluya emndenini wakho , Isetshenziselwa ikakhulukazi amantombazane, abafundi, abantu abadala abanesizungu ukuze bathole usizo, ukubukeka kwemfashini , kulula ukuphatha Imisebenzi: 1. Khipha...
Funda kabanzi