(3deGPG JYUa GdQjM h CSFdI CNQi Mhd chcHfG (B/ s - (3ZGfjQj, CfjJGs; (3SeGMI, fGJGdjs ((3HjQhJ (B:s (3GdOGQ GdYQHjI ddYdhe,s, 1997)
Keywords: (3GdCQVs; (3GdCMhGd GdLhjIs; (3CWaGd eQMdI eJhSWI (B(6-9 (3SfhGJ(B)s