(3HQfGeL Yedj ddeJabgjf (B:s (3KeGf bhGYO VQhQjI dcd eTJZd HWdH GdYde hGdJabg aj Ojf Gddg (B/s - (3GdbGQF, YHO GdYRjR Hf YHO GdaJGM,s 1361 (3gLQjG(B-s ((3GdWGFa(B- (3GdSYhOjI (B:s (3ecJHI GdUOjb,s, 1990)
Keywords: (3GdbhGYO GdabgjIs; (3Gdabg GdESdGejs