(3eLehYI GdMVGfI(B: (3hLGA GNi(B-(3QMdI Gdi GdShb(B-(3ai HjJfG cdH(B-(3QMdI HGdSjGQI(B- (3YfO GdWHjH(B- (3UOjbi GdLOjO (B/ s - (3hcGdI GdeWHhYGJs ((3GdchjJ (B: s (3hcGdI GdeWHhYGJ , s, 1998)
Keywords: (3GdGWaGds; (3bUU GdGWaGds; (3GOH GdGWaGds