(3GdGNJHGQGJ hGdbjGSGJ ddGYHi cQI GdbOe (B/ s - (3Mfai eMehO eNJGQs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1991)
Keywords: (3GdGdYGH GdQjGVjIs; (3cQI GdbOes; (3GdJOQjH GdQjGVis