Guarneros-Zarandona, Nallely, et al. “Family Economy and Biodiversity Index of Species in the Community Backyards of Santa María Nepopualco, Puebla”. Revista Mexicana De Ciencias Agrícolas, no. 9, Apr. 2018, pp. 1701-12, https://doi.org/10.29312/remexca.v0i9.1058.