Sisk, Thomas D and Castellanos, Alejandro E. and Koch, George William (2007) Ecological impacts of wildlife conservation units policy in Mexico. Frontiers in Ecology and the Environment, 5 (4). pp. 209-212. ISSN 1540-9309
Teuton, Robert Saavedra (2018) Developing cooperation: Discovering supportive legal frameworks and policies for worker owned cooperatives. Masters thesis, Northern Arizona University.