Putra, R. S., M. Khatami, and R. Kurniawan. “The Effectiveness of Outdoor Learning to Improve English Skills at Aceh Islamic Nature School (AINS)”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, vol. 15, no. 2, Oct. 2023, pp. 959-70, doi:10.37680/qalamuna.v15i2.3321.