Alfaro Barquero, Alejandra, and Sonia Chinchilla Brenes. “Vocational Preferences and Skills in Environmental Engineering, Forestry and Occupational Safety and Environmental Hygiene: Preferencias Y Habilidades Vocacionales De Las Ingenierías Ambiental, Forestal Y Seguridad Laboral E Higiene Ambiental”. Mathematics, Education and Internet Journal, vol. 20, no. 2, Mar. 2020, doi:10.18845/rdmei.v20i2.5041.