(3GdHDSGA (B- (3GdJQLeI GdcGedIs - (3gjLh(B. (3ajcJhQs; (3GdcjdGfj(B. (3eDjO (B- (3eJQLes ((3OGQ ecJHI GdMjGIs (3HjQhJs, 1990)
Keywords: (3bUUs; (3bUU YGdejI eJQLeIs