Schreiber, Tatiana, Shaina Opperman, Rebecca Hardin, Julia Cavicchi, Audrey Pallmeyer, Kim Nace, and Nancy Love. “Nested Risks and Responsibilities: Perspectives on Fertilizer from Human Urine in Two U.S. Regions”. Journal of Agriculture, Food Systems, and Community Development 10, no. 3 (June 15, 2021): 221–242. Accessed August 16, 2022. https://www.foodsystemsjournal.org/index.php/fsj/article/view/982.