Salazar-Acuña E, López-García Y. Aula en el Bosque, an environmental education program for the Costa Rican tropical forest: effect on students and teacher opinions. URJ [Internet]. 2018 Sep. 21 [cited 2024 Apr. 29];10(2):342-5. Available from: https://revistas.uned.ac.cr/index.php/cuadernos/article/view/2164