(3GdHGbI (B: s (3TYQ (B/ s - (3SfGf, YHO GdSdGe eNJGQs ((3WQGHdS (B( (3djHjG (B) :s (3OGQ ecJHI GdacQ,s, 1973)
Keywords: (3GdTYQ GdYQHjs; (3GdYUQ GdMOjKs; (3djHjGs