Daldiyono Hardjodisastro, author
[publisher not identified], [date of publication not identified]
Buku Teks
Smith, Daniel, author
Michael O'Mara Books Limited, 2015
Buku Teks
McGraw-Hill, [date of publication not identified]
Buku Teks
George, Richard T. de
Regents Press of Kansas, 1980
Buku Referensi
Farrington, B.
Henry Schuman, 1949
Buku Teks