(3LSec cja jYeds - (3gfOdj(B. (3LhOjs ((3OGQ GdTQhbs (3HjQhJs, 1983)
(3JQLeI SjO QeVGf gOGQIs
Keywords: (3LSe GdmGfSGfs; (3GdGfSGf (B- (3CYVGA (B- (3hXGFas