Artikel Jurnal
Singapore Archipelago Press 1996,
Buku Referensi
Maine, Henry Sumner, 1822-1888, author
University of Arizona Press, 1986
Buku Teks
Maine, Henry Sumner, 1822-1888, author
Dorset Press, 1986
Buku Teks
Nevalainen, Terttu, author
Edinburgh University Press, 2006
Buku Teks