(3JMQjQ GdYbd ef Gdfbd h bQGAI fbOjI deLehYI ef CMGOjK GdHNGQj h eSde (B/ s - (3ESdGeHhdj, SGeQs ((3OeTb (B: s (3GdChGFd ddfTQ hGdJhRjY, s, 2000)
Keywords: (3GdabI GdESdGej(B. s; (3GdMce(B. s; (3Ydhe GdMOjK(B. s