(3GdJejjR aj eYQaI CbSGe GdCdaGJ aj cJGH Gddg GdYRjR (B/s - (3GHf GdfLGQ, eMeO Hf CMeO Hf OGhO,s (3J(B. 378 (3g`(B.s; (3GdHhGH, Ydj MSjfs ((3GdbGgQI (B:s (3ecJHI GdSda GdUGdM,s, 1989)
Keywords: (3GdbQBfs -- (3CdaGXs