1. Albuquerque Júnior, D. M. (2007). Preconceito contra a origem geográfica e de lugar: As fronteiras da discórdia. Cortez (Preconceitos; v. 3), São Paulo, Brazil.
2. Amundson, R., Berhe, A. A., Hpmansm, J. W., Olson, C., Sztein, A. E., & Sparks, D. L. (2015). Soil and human security in the 21st century. Science, 348(6235). https://doi.org/10.1126/science.1261071
3. Aparin, B., & Suhacheva, E. (2002). Methodology of uninterrupted ecological education and soil science. In World congress of soil science, 17., Thailand, 2002. Abstracts (p. 1685). IUSS.
4. Ausubel, D. P. (1968). Educational psychology: A cognitive view (1st ed.). Holt, Rinehart and Winston.
5. Baldwin, C., Smith, T., & Jacobson, C. (2017). Love of the land: Social-ecological connectivity of rural landholders. Journal of Rural Studies, 51, 37–52, ISSN 0743-0167. https://doi.org/10.1016/j.jrurstud.2017.01.012