(3GdeUQa hGdGYeGd GdeUQajI (B/ s - (3aQjO GdUdMs; (3ehQjS fUQs ((3HjQhJ (B: s (3GdGgdjI ddfTQ hGdJhRjY , s, 1989)
Keywords: (3GdHfhcs; (3GdHfhc GdeQcRjIs; (3GdHfhc (B- (3bhGfjf hJTQjYGJs; (3Hfhc GdJSdjas; (3GdHfhc (B- (3GYJeGOGJs; (3GdHfhc (B- (3SfOGJs