Newton, Virgil Miller, 1904-1977
The Iowa State University Press, 1961
Buku Teks
Steinberg, Sheldon S., author
Rosda Jayaputra, 1998
Buku Teks
Weyl, Walter E.
N.Y. Harper & Row , 1964
Buku Teks
Tocqueville, Alexis De, author
Oxford University Press, 1961
Buku Teks
Tocqueville, Alexis De, author
The New American Library, 1963
Buku Teks