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- University of California Agriculture and Natural Resources (1)
- University of California, Agriculture and Natural Resources (3)
- University of Hawaiʻi - Mānoa, College of Tropical Agriculture and Human Resources (CTAHR), Kauaʻi Cooperative Extension (1)
- University of Hawaii at Manoa (1)
- University of Idaho (2)
- University of Maine, Cooperative Extension (1)
- University of Maryland Eastern Shore Extension - 4-H STEM and Youth Development (1)
- University of Missouri Extension (2)
- University of Nebraska-Lincoln (3)
- University of Nevada Reno - Cooperative Extension (1)
- University of Tennessee (1)
- University of Wyoming - Agricultural and Applied Economics (1)
- University of Wyoming Extension (1)
- Utah State University (1)
- Utah State University Forestry Extension (1)