(3JGQjN GdYQH GdMOjK (B/ s - (3Lejd HjVhfs; (3TMGJg GdfGWhQs; (3Ydi YcGTIs ((3GdGQOf (B: s (3OGQ GdGed ddfTQ hGdJhRjY , s, 1991)
Keywords: (3GdYUQ GdMOjKs; (3GdYGde GdYQHis; (3JGQjNs; (3GdGMhGd GdGLJeGYjIs; (3GdGMhGd GdSjGSjIs; (3GdLeYjGJ GdSQjIs; (3GdGMhGd GdGbJUGOjIs; (3GdGSJYeGQ GdaQfSis; (3GdGeHQGWhQjI GdYKeGfjIs; (3GdGSJYeGQ GdHQjWGfis; (3GdMQcGJ GdGfaUGdjIs; (3GdYGde GdYQHi (B- (3JGQjN (B- (3GdYUQ GdYKeGfis