(3GdJbQjQ GdeGdj hGdHjGfGJ GdeGdjI GdeQGLYI Yf GdSfI GdefJgjI OjSeHQ (B1983 (3hJbQjQ eLdS eQGLYj GdMSGHGJ (B/s - (3GdCee GdeJMOI(B.s ((3fjhjhQc (B:s (3GdLeYjI GdYGeI (B- (3GdCee GdeJMOI,s, 1984)
(3GdedMb Qbe (B5.s
(3GdhKGFb GdQSejI(B: (3GdOhQI GdJGSYI hGdKdGKhf(B.s
Keywords: (3GdbGfhf GdOhdj GdYGe(B.s; (3GdeGdjI GdYGeI(B.s