Neushul, Michael
Hamilton, 1974
Buku Teks
Wilson, Carl L.
Holt, Rinehart and Winston, 1962
Buku Teks
Sarton, George
Henry Schuman, 1948
Buku Teks SO
edited by Ian Gregory, Don DeBats and Don Lafreniere
Routledge, 2018
Buku Teks SO
Horne, Herbert P.
Haskell House , 1970
Buku Teks SO