Guteza imbere ibikorwa byo gukora amarangi y'amazi n'amavuta, verini, na masitike hakoreshejwe umutungo kamere uboneka mu karere.
Kwigisha abantu ndetse no gusakaza ubumenyi bwo gukora amarangi hakoreshejwe umutungo kamere (itaka) | (Not translated) | Edit |