Author Details

Sabri, Mohammed, <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>Department of Mathematics and Physics, University of Campania Luigi Vanvitelli, Caserta, Italy. Department of Informatics, Faculty of Sciences Dhar El Mahraz, Sidi Moham, Morocco



GRASPA 2019 is organised with the support of "Dipartimento di Economia",  University "G. d'Annnunzio", Chieti-Pescara