Source: https://www.researchgate.net/profile/Bilel-Gargouri/publication/228628014_Modelisation_des_paradigmes_de_flexion_des_verbes_arabes_selon_la_norme_LMF-ISO_24613/links/09e41510be58abc1c7000000/Modelisation-des-paradigmes-de-flexion-des-verbes-arabes-selon-la-norme-LMF-ISO-24613.pdf