editor, Linda Komaroff
Brill, 2013
Buku Teks SO
Kei, Ushimura, author
International House of Japan, 2003
Buku Teks
Johnson, Carol, author
Allen and Unwin, 1989
Buku Teks
Zainah Anwar, author
Yayasan Mohamed Noah; Petaling Jaya, Selangor, Malaysia , 2011
Buku Referensi
Bailey, Cyril, author
Oxford University Press, 1951
Buku Teks