Gw mau tau Nota dari Gunung Berapi Haleakalā. Jelasin dalam bahasa melayu

Haleakalā National Park Official Website, accessed March 2008.

Macdonald, Gordon A., Agatin T. Abbott, and Frank L. Peterson. 1983. Volcanoes in the Sea. University of Hawaii Press, Honolulu. 517 pp.