References
Dorfman L, Sorenson S, Wallack L. Working upstream: skills for social change [Internet]. Berkeley (CA)
Dorfman L, Sorenson S, Wallack L. Working upstream: skills for social change [Internet]. Berkeley (CA): Berkeley Media Studies Group; 2009 [cited 2021 Oct 12]. 288 p.
https://www.bmsg.org/wp-content/uploads/2009/02/bmsg_handbook_working_upstream.pdf