(3JGedGJ fbOjI ai GdMOjbI GdTYQjI (B: (3bQGAGJ hOQGSGJ (B/ s - (3eMeO GHQGgje GHhSfIs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1989)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdYUQ GdMOjKs; (3JGQjN hfbOs