(3ai GdfbO GdGOHi hJGQjNI YfO GdYQH (B/ s - (3NGdO jhSas ([S.N] : (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY , s, 1987)
Keywords: (3GdGOH GdYQHis; (3GdfbOs; (3JGQjN hfbOs