(3ELQGAGJ GdJaJjT GdCefj aj GdeWGQGJ (B/s - (3GdjGSjf, CfhQs ((3GdchjJ (B:s (3hRGQI GdOGNdjI, EOGQI GdHMhK hGdOQGSGJ,s, 1988)
(3HHdjhLQGajI (B: (3U(B. 157.s
Keywords: (3GdeWGQGJs -- (3JOGHjQ CefjIs -- (3GdchjJs