(3GdEOGQI GdJQHhjI h GdbjGOI (B: s (3eaGgjegG(B- (3hXGFagG (B- (3fXQjGJgG (B/ s - (3EdjGS, Wg GdMGLs ((3YeGf (B:s (3ecJHI GdCbUi,s, 1984)
Keywords: (3GdeOGQSs; (3GdEOGQI GdeOQSjIs