Tazrawt niḍen yexdem-itt COHEN Marcel (1947) ɣef yinagrawen n tusnimeslit n tmaziɣt akked tutlayin tisamiyin,tazrawt-is tebgen-d belli 16 seg 28 n yimesla n tutlayin tisamiyin ur sɛint ara amqibel-nsent di tmaziɣt .CHAKER(1990 :12).