(3YHO Gddg Hf YeQ (B:s (3GdUMGHj GdeDJSj HQShd Gddg Udi Gddg Ydjg hSde (B/s - (3eSJh, eMjj GdOjf OjHs ((3OeTb ;s (3HjQhJ (B:s (3OGQ Gdbde,s, 1973)
Keywords: (3YHO Gddg Hf YeQ Hf GdNWGH GdYOhj,s -- 10 (3bHd GdgLQI(B-73 (3gLQjs; (3GdUMGHI hGdJGHYhfs -- (3JQGLes; (3SjQI GdUMGHIs