(3ef cd hGO MLQs - (3GdYeQj, NjQ GdOjf s ((3GdYQGb(B-(3GdehUds [(3O(B.(3f(B]s, 1972)
Keywords: (3GdCOH GdYQHj (B-- (3eLehYGJs; (3GdCeKGd GdYGejI GdYQHjIs; (3GdCOH GdYQHj (B-- (3GdYUQ GdMOjKs