"What is a Wilderness Area". The WILD Foundation. Diarsipkan dari versi asli tanggal 4 December 2012. Diakses tanggal 20 February 2009.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Watson, James E.M.; Shanahan, Danielle F.; Di Marco, Moreno; Allan, James; Laurance, William F.; Sanderson, Eric W.; Mackey, Brendan; Venter, Oscar (November 2016). "Catastrophic Declines in Wilderness Areas Undermine Global Environment Targets". Current Biology. 26 (21): 2929–2934. doi:10.1016/j.cub.2016.08.049. PMID27618267.
Watson, James E.M.; Shanahan, Danielle F.; Di Marco, Moreno; Allan, James; Laurance, William F.; Sanderson, Eric W.; Mackey, Brendan; Venter, Oscar (November 2016). "Catastrophic Declines in Wilderness Areas Undermine Global Environment Targets". Current Biology. 26 (21): 2929–2934. doi:10.1016/j.cub.2016.08.049. PMID27618267.
"What is a Wilderness Area". The WILD Foundation. Diarsipkan dari versi asli tanggal 4 December 2012. Diakses tanggal 20 February 2009.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)