(3GddjRQs - (3cjQK(B. (3gGjfRs ((3GdLeYjI GdYdejI GdedcjIs (3YeGfs, 1980)
(3JQLeI LQjS GdQjMGfjs
Keywords: (3GdETYGY GdVhFj GddjRQ s