Raporo y'ivyaringanijwe n'  : umuhari w'abarundikazi mu guhimbaza awa 8 Ntwarante, umunsi wahariwe abakenyezi kw'isi yose 

. - Bujumbura  : Ibiro vy'umuhari w'abarundikazi, 1989
. - 59p.  : Ill.  ; 23Cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>329.7