Umwanya Amakuru 1. Ushinzwe iterambere, gucunga, gusesengura, gusuzuma no guhitamo abakiriya b'abanyamahanga, kandi byuzuye imirimo yo kugurisha amahanga; 2.. Ushinzwe gushyiraho sisitemu ya dosiye y'abakiriya no gucunga, kugenzura, gukurikirana no gusesengura; 3. Ashinzwe gukusanya ...