Lindesay, William, author
Odyssey Publications, 1998
Buku Referensi
Wenli, Zhang, author
Scala Book, 1998
Buku Referensi
Smedley, Agnes
The Vanguars Press, 1934
Buku Teks
Kramer, P. J., 1916-, author
Serambi Ilmu Semesta, 2010
Buku Teks
Hong, Jaecheol, author
Elex Media Komputindo, 2012
Buku Teks