(3GdeGOjI h GdeKGdjI h GReI GdYUQ (B/ s - (3GdMafi (B: (3YHO GdefYes ((3GdbGgQI (B: s [(3O(B.(3f(B]: s, 1977)
Keywords: (3GdeGOjI (B((3adSaI(B)s; (3GdeGQcSjIs; (3GdeKGdjIs