Janice Harper: Endangered Species: Health, Illness, and Death Among Madagascar’s People of the Forest. Carolina Academic Press 2002: S. 105–107. ISBN 978-0-89089-238-1archive.org
Conrad Keller: Madagascar, Mauritius and Other East-African Islands. S. Sonnenschein 1901: S. 90–91. archive.org
William Ellis: History of Madagascar. Fisher 1838: S. 164 und Fußnote. archive.org
books.google.com
Gwyn Campbell: David Griffiths and the Missionary “History of Madagascar”. BRILL Academic 2012: S. 410. ISBN 978-90-04-19518-9google books
Gwyn Campbell: David Griffiths and the Missionary “History of Madagascar”. BRILL Academic 2012: S. 623–624. ISBN 978-90-04-19518-9google books
Gwyn Campbell: David Griffiths and the Missionary “History of Madagascar”. BRILL Academic 2012: S. 63–67. ISBN 978-90-04-19518-9google books