(3GdTQjYI GdGSdGejI(B: (3ceUOQ GSGSi ddOSJhQ (B/ s - (3YHOGdMejO eJhdis; (3YHOGdMdje eMehOs ([S.N] : (3efTGI GdeYGQa , s, 1990)
Keywords: (3GdbGfhfs; (3GdTQjYI GdGSdGejIs; (3GdOSJhQs; (3GdbGfhf GdOSJhQis