(页面存档备份,存于互联网档案馆) retrieved on October 16 2007. Lonsdale, John, and Berman, Bruce. 1992. Unhappy Valley: conflict in Kenya and Africa. (J Currey Press)
Researchers. New York Times. 1988-02-02 [2011-05-21]. (原始内容存档于2013-05-13) (英语). Berman, Eli; Iannaccone, Laurence. Religious Extremism: The Good, The Bad, and
Mars." Icarus 207.1 (2010): 265-276. Hartmann, William K., and Daniel C. Berman. "Elysium Planitia lava flows: Crater count chronology and geological implications