Ayen yeɛnan tamurt n Marikan akked tmura n Legniz, ur d-nebdir ara ala « ph. d » akked ducṭura (melba ma neḥseb master) ma dayen yeɛnan Lzzayer neddem-d s lmendat n yigemmiren n lmagister, deg wayen yeɛnan Lmaruk, DES akked duktura n uwanek. Anaw n ufares-agi ur d-yettuberḥen ara s waṭas yuɛar akken ad ten i d-neḥseb akken iwata. Yerna iban belli ur d-udireɣ ara aṭas n yizwula, maca aya-agi ur d yettili ara d tazrirt ɣef tigrayin i nezmer ad ten i d-nessufeɣ seg leḥsab-agi.