Farida, Cherchab Djaileb2014-04-142014-04-142014-04-14https://dspace.univ-tlemcen.dz/handle/112/4716Teaching english for specific purposes was and it is important issue among EFL in the current research an experiment is conducted to find out the teacher 's difficulties in teaching ECS and the learning ...enESP-Autentic materials-evaluation-computer sciences-LMD systemThesis