(3GddSGf hGdEfSGf (B:s (3eONd Edi eYQaI GddZI (B/s - (3XGXG, MSfs ((3OeTb (B:s (3OGQ Gdbde ;s (3HjQhJ (B:s (3GdOGQ GdTGejI,s, 1990)
(3HHdjhLQGajI (B: (3U(B. 195-198.s
Keywords: (3GddZGJ GdebGQfIs; (3Yde GddZIs