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  [] National Geographic (ų ׷ )

  National Geographic Society  |  (̱) |  (12ȸ)  | 

  ⱸ[12]    192,000 180,000 (6%)

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  [] National Geographic Little Kids ų ׷ ƲŰ

  National Geographic Society  |  (̱) |  ݿ (6ȸ)  | 

  ⱸ[12]    79,200 72,000 (9%)

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  [] Ask

  Carus Publishing  |  (̱) |  Ÿ (9ȸ)  | 

  ⱸ[12]    217,800 198,000 (9%)

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  [] Discover

  Discover Media LLC.  |  (̱) |  (6ȸ)  | 

  ⱸ[12]    108,000 108,000 (0%)

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  [] American Scientist

  The Scientific Research Society  |  (̱) |  ݿ (6ȸ)  | 

  ⱸ[12]    132,000 120,000 (9%)

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  [] Scientific American

  Scientific American Pub. Co.  |  (̱) |  (11ȸ)  | 

  ⱸ[12]    229,900 209,000 (9%)

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  [ù] (õ̵)

   |  Ϻ (Ϻ) |  (12ȸ)  | 

  ⱸ[12]    226,800 226,800 (0%)

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