(3ChQGcd (B8i (3ef GdUaQ (B/ s - (3ghJcG, OGfs; (3GdOGQ GdYQHjI ddYdhe(B.s (3eQcR GdJYQjH hGdJQLeIs ((3HjQhJ (B: s (3GdOGQ GdYQHjI ddYdhe, s, 2001)
Keywords: (3GdMhGSjH(B. s; (3bhGYO GdHjGfGJ(B. s