(3SdSdI GOH GdGWaGd GdYGdei (B: (3GdJfjf GdVNe(B-(3GdeGQO GdYLjH(B-(3LRjQI GdcfR(B-(3eZGeQGJ QhHfSf cQhRh(B-(3QMdGJ LdaQ (B/ s - (3GMeO fLjHs; (3jYbhH GdTGQhfis; (3GHQGgje GdeYdes ((3GdbGgQI (B: s (3OGQ GdTQhb , s, 1992)
Keywords: (3bUU GdHWhdGJs; (3GdGWaGds; (3GdbUUs; (3bUU GdGWaGds