(3JbQjQ GddLfI GdeNUUI dUjGZI GJaGbjI OhdjI defGgVI GdaUd GdYfUQj aj GdCdYGH GdQjGVjI (B/s - (3GdCee GdeJMOI(B.s ((3fjhjhQc (B:s (3GdLeYjI GdYGeI (B- (3GdCee GdeJMOI,s, 1977)
(3GdedMb Qbe (B36.s
(3GdhKGFb GdQSejI(B: (3GdOhQI GdKGfjI hGdKdGKhf(B.s
Keywords: (3GdbGfhf GdOhdj GdYGe(B.s; (3GJaGbjGJ OhdjI(B.s