فهرس المقالات AliAkbar Jandaghian المقاله 1 - Investigating Effect of Using Piezoelectric layers on the Forced Vibration of Circular Plates AliAkbar Jandaghian AliAsghar Jafari International Journal of Advanced Design and Manufacturing Technology , العدد 5 , السنة 5 , زمستان 2012