Luna Chontal, Giovanni, et al. “Bee Characterization in the Sierra Central-North Region of Veracruz: Context and Transhumance”. Revista Mexicana De Ciencias Agrícolas, vol. 10, no. 6, Sept. 2019, pp. 1339-51, https://doi.org/10.29312/remexca.v10i6.1689.