Schurmann, Franz, author
Vintage Books, 1967
Buku Teks
Gale, Esson M.
Michigan State College Press, 1953
Buku Teks
Than, Walter
Danubia-Verlag, 1949
Buku Teks
Mackerras, Colin, author
World Scientific, 2015
Buku Teks
Wang, Keping, author
Elex Media Komputindo, 2011
Buku Teks