(3eQhL GdPgH h eYGOf GdLhgQ (B/ s - (3GdeSYhOj, CHh GdMSf Ydj Hf GdMSjf Hf Ydjs; (3YHO GdMejO, eMeO eMjj GdOjfs ((3HjQhJ (B:s (3OGQ GdeYQaI,s, 1987)
Keywords: (3GdJGQjNs; (3GdYQHs; (3GdYGdes; (3GdJQGLes