(3GdLfSjI hGdehWf heQcR GdCLGfH (B/s - (3UGOb, gTGe Ydj(B.s ((3GdEScfOQjI, eUQ (B:s (3efTCI GdeYGQa,s, 1977)
(3L(B. 1. (3aj GdLfSjI hGdehGWf(B--(3L(B. 2. (3aj eQcR GdCLGfH(B.s
(3jTJed Ydi HHdjhLQGajGJ(B.s
Keywords: (3GdLfSjIs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdehGWfIs -- (3bhGfjf hJTQjYGJs -- (3eUQs; (3GdCLGfHs -- (3hVY bGfhfj, bhGfjf, EdN(B.s -- (3eUQs