(3efGd GdWGdH (B: (3aj TQM WhGd GdZQGFH (B/ s - (3CHf GdCKjQ, eLO GdOjf CHh GdSYOGJs; (3GdWGMfj, eMehO eMeOs ((3GdbGgQI (B:s (3ecJHI GdNGfLi,s, 1997)
Keywords: (3GdMOjK GdZQjHs; (3GdMOjK GdTQjas