(3GdJGNQ GdOQGSi (B/ s - (3YHOGdYRjR GdSjO GdTNUs ([S.N] : (3SajQ , s, 1994)
Keywords: (3GdJQHjIs; (3GdGWaGds; (3GdJdjaRjhfs; (3Yde faS GdWads; (3GdGWaGd GdeYhbhfs; (3GdJGNQ GdOQGSis