Buku Teks
edited by Michael H. Whitworth
Blackwell, 2007
Buku Teks
Masashi Abe
Center for Asian and Pacific Studies, Seikei University, 2017
Artikel Jurnal
Trulove, James Grayson
HarperCollins, 2001
Buku Referensi
Holt, Rinehart and Winston,, 1977
Buku Teks