Institution Name : Ecole superieure de commerce Address : t_lahrache@yahoo.fr Telephone : 00213661721213 Fax : 0021321423732 Web Site : www.esc-alger.com E-mail : Institution Name : institute of trainning and education profestions Address : rue of three frendes dillali birkhadem algers .algeria Telephone : (213) 021542144/45/46 Fax : (213)021542200 Web Site : www.ifp-alger.edu.dz E-mail : alikouachi126@yahoo.fr Institution Name : ministery of prospectives and statistics Address : Telephone : 0774013283 Fax : Web Site : http://www.mps.gov.dz E-mail : mounaplan@yahoo.fr