Kennedy, Eugene
      
      
         Free Press, 1997
       Buku Teks SO
   
Rezkita Rasyid
      
      
         Fakultas Teknik Universitas Indonesia, 2022
       UI - Skripsi Membership
   
Liss, Sheldon B.
      
      
         Westview Press, 1991
       Buku Teks SO
   
More, Thomas, Saint, 1478-1535
      
      
         David Campbell Publishers, 1992
       Buku Referensi
   
More, Thomas, Saint, 1478-1535
      
      
         Appleton Century-Crofts, 1949.
       Buku Teks SO