Coba jelasin Catatan dari Yayasan Nobel dong

"2007 Nobel Conference" – Official site of the "2007 Nobel Conference" at Gustavus Adolphus College, Saint Peter, Minnesota. Accessed October 28,

"The Nobel Foundation''– Official site of the Nobel Foundation.

"Nobel Symposia" – Official webpage of the Nobel Foundation.

"The Will of Alfred Nobel" – Official webpage of the Nobel Foundation; quotes a pertinent excerpt.