(3OQGSGJ hehGba aj GdacQ hGdSjGSI hGdeLJeY (B/ s - (3TeS GdOjf, eMeO egOj, s 1354-1422 (3gLQj, s ((3HjQhJ (B[(3dHfGf(B] : s (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY, (B410 (3g`(B. = 1990.s, 1990)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdGSdGes -- (3MQcGJ GdGMjGA hGdGUdGM hGdJLOjO(B.s