(3GdGOGQI ai GdjGHGf cja fSJajO efgG (B/ s - (3eMeO YHOGdbGOQ MGJes ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3GOGQI GdGYeGds; (3GdjGHGfs; (3GdYdGbGJ GdGfSGfjIs; (3GOGQI GdGaQGOs; (3GdGLhQs