(3GddHhfGJ GdCaQjbjI (B/ s - (3HeHQJhf, Lhf djs; (3eShM, QGeRs ((3HjQhJ (B:s (3ecJHI dHfGf,s, 1975)
Keywords: (3GdKOjjGJs; (3GdMjhGfGJs; (3fGTFhf UZGQ (B(10-14)(3SfIs