Genel Açık Havada Eğitim Matematik ve Fen Bilimleri Derslerindeki Başarıyı Etkiliyor 4 Kasım 2018 Kaynak: http://grayff.org/wp-content/uploads/2018/05/Empirical-Evidence-Supporting-Benefits-of-Outdoor-School-and-Experiential-Learning-Programs_March-2015.pdfhttp://grayff.org/wp-content/uploads/2018/05/Empirical-Evidence-Supporting-Benefits-of-Outdoor-School-and-Experiential-Learning-Programs_March-2015.pdf :
