(3cJGH GdJfHjg Ydi SHjd GdSYGOI (B/ s - (3GdaGQGHj, CHh fUQ eMeO Hf eMeO Hf WQNGfs; (3Bd jGSjf, LYaQs ((3HjQhJ (B:s (3OGQ GdefGgd ddWHGYI h GdfTQ h GdJhRjY,s, 1987)
Keywords: (3GdadSaI GdESdGejIs; (3GdSYGOIs