(3WQb UjGfI hJQeje GdGKGQ hGdebJfjGJ GdafjI (B/ s - (3YHOGdeYR TGgjfs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1975)
Keywords: (3GdeYGOfs; (3Yde GdeUQjGJs; (3GdHQOis; (3GdeNWhWGJs; (3GdRLGLs; (3GdaNGQs; (3JQeje GdGKGQs