(3GNhGf GdUaG h NdGf GdhaG (B/ s - (3ZGdH (B: (3eUWais ((3HjQhJ (B: s (3efThQGJ OGQ h ecJHI GdgdGd (B: s, 1982)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
Keywords: (3GNhGf GdUaGs; (3GdadSaI GdGSdGejIs