(3cja JJNdU ef (B8 (3cZe NdGd (B14 (3jheG (B: s (3MejI ScGQSOjd GdJj dG JNWiA (B/ s - (3JGQfhjQ, gQeGfs; (3HjcQ, SGe SfcdjOs ((3HjQhJ (B:s (3GdCgdjI ddfTQ,s, 1987)
Keywords: (3GddjGbI GdHOfjIs; (3GdQjLjes