Ma nuɣal-d s inzan d lemɛun n leqbayel, ad d-naf ṣṣenf-agi n tsekla d amensay, d aqbur, ttawind ɣef tmetti, ttaken-aɣ-d udem n temɛict n ugdud aqbayli d wayen yesseqdac deg tudert-is n yal ass, d umezruy-is d wansayen-is.Yelḥa-d s timawit i as-d-ixelfen aṭas n ubeddel, ama d talɣa, agbur, d tegnatin n tmenna. ef waya anadi ɣef tewsit-a timawit taqbaylit, mazal yessazal imru n yinagmayen, imi d yiwen ṣṣenf , i yellan ar ass-a, yessutur-d tizrawin. Inadiyen usnanen d tezrawin tisdawanin yerzan tawsit-a, tuget deg-sent d ajmaɛ n wamud,maca iswi-nsen d aseḥbiber ɣef ugerruj-agi seg tatut. S umata, tizrawin yerzan tawsit n yinzan d lemɛun n leqbayel, yella-d lexṣaṣ deg-s, am wakken i d-yenna A.Bounfou  la pauvert quantitative et qualitative des tudes qui, la plupart, se contentent dun classement thmatiques .