(3YeQ Hf GdNWGH (B: s (3hCUhd GdSjGSI hGdEOGQI GdMOjKI (B/s - (3SdjeGf eMeO GdWeGhjs ((3GdbGgQI (B:s (3OGQ GdacQ GdYQHj,s, 1976)
(3jTJed Ydi bGFeI HCHMGK GdeDdas
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdYdhe GdSjGSjIs; (3GdGSdGes -- (3fXGe GdMce ajs; (3GdfXe GdSjGSjIs