(3eGPG JYQa Yf GdGMJjGd GdHMQj hGdZT aj GdJLGQI GdOhdjI (B/ s - (3GJMGO GdZQa GdYQHjI GdNdjLjI (B((3GdOeGe, GdSYhOjI(B)(3, s; (3GdedG, eMeO YHO Gddg, s; (3GJMGO GdZQa GdYQHjI GdNdjLjI (B((3GdOeGe, GdSYhOjI(B)(3, s ((3GdOeGe, GdSYhOjI (B: s (3GdHfc GdYQHj GdhWfj, (B407 (3g`(B. = 1987.s, 1987)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOhdj GdHMQj(B.s; (3GdLQGFe GdGbJUGOjI(B.s; (3GdTMf GdHMQj (B((3bGfhf Ohdj(B).s; (3GdfUH hGdGMJjGd(B.s