(3aVGFd GdPcQ h GdOYGA (B/ s - (3EHf bje GdLhRjI, CHh YHO Gddg Hf CHj HcQs ((3GdbGgQI (B:s (3ecJHI GdJQGK GdESdGej,s, 1983)
Keywords: (3GdESdGes; (3GdTYGFQs; (3GdCOYjI GdESdGejIs