• Political and economic blunders 

      Poutsma, H. J. ([Pretoria] : H.J. Poutsma, 1915)
      Review of the policy of the Smuts-Botha government, being a reprint of articles published in the "New Age", since January, 1915 together with some additional matter.
    • Een tehuis voor weezen in Zuid-Afrika 

      Poutsma, H. J. ([Hilversum : s.n.], 1902-10)
      H.J. Poutsma's plan to open an orphanage for the orphans in South Africa, who's parents passed away during the Anglo-Boer War.