Durán López ME, Barrientos Llosa Z, Charpentier Esquivel C. Environmental perception by urban school children: influence of green areas, financing and sex in Costa Rica. URJ [Internet]. 2016 Jun. 10 [cited 2024 May 2];8(1):31-9. Available from: https://revistas.uned.ac.cr/index.php/cuadernos/article/view/1220