(3OjhGf aOhi WhbGfs - (3WhbGf(B. (3aOhis ((3OGQ GdYhOIs (3HjQhJs, 1988)
Keywords: (3GdTYQ GdYQHj GdMOjKs; (3GdTYQ GdYQHj GdMOjK(B- (3OhGhjfs