(3GdTQcGJ GdJLGQjI (B: s (3GdTQcGJ PGJ GdeSFhdjI GdeMOhOI hTQcGJ GdeSGgeI hGdJhUjI HGdCSge (B/ s - (3jhfS, Ydj MSf s ([(3O(B. (3e(B. : s (3O(B. (3f(B.](3, s, 1991)
Keywords: (3GdTQcGJs -- (3bhGfjf hJTQjYGJs -- (3eUQ s; (3GdTQcGJ GdeSGgeIs -- (3bhGfjf hJTQjYGJs -- (3eUQ s