(3chcHfG aj Gdchf (B/ s - (3HhQjZGQ, OjGfG chSJGOhs; (3GdgGTe, CfWhGfs; (3Ohfjh, cdGQjSs; (3aGQjg, eGQjs; (3gffZ, Bf Ohs ((3HjQhJ (B:s (3OGQ YhjOGJ,s, 2000)
Keywords: (3GdchGcHs; (3GdfXGe GdTeSjs; (3GdCMhGd GdLhjIs; (3fGTGhf UZGQ (B(10-14) (3Sfgs