(3GdGOeGf ai Sf GdeQGgbI (B: s - (3TGHQhd , gfQis; (3aDGO TGgjf s ((3HjQhJ (B:s (3YhjOGJ ddfTQ hGdWHGYI,s, 2001)
Keywords: (3GOeGf GdeNOQGJs; (3GdeNOQGJ hGdTHGHs; (3ecGaMI GdeNOQGJs; (3GdeNOQGJ hGdLQjeIs; (3GdaSGO GdGLJeGYis; (3GdeQGgbI s; (3GdGOeGfs