Kubungabunga urumuri

Ingamba zo gukingira urumuri zirimo ahanini ibice bine:
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3. Sisitemu ishinzwe inshingano: Shyira mu bikorwa imicungire y’akarere mu karere, usobanure neza uburyo bwo kugenzura (bisabwa buri cyumweru) no gusana igihe cyo gusubiza (Bitarenze cyangwa bingana n’amasaha 4), kandi ushimangire kubazwa.
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