1.
Annas FB, Lubis DP, Hapsari DR, Sumardjo S. Action-Based Learning in Environmental Education for Elementary School Students Through Ecotourism. pssh [Internet]. 2025 Aug. 23 [cited 2025 Sep. 3];25:771-8. Available from: https://conferenceproceedings.ump.ac.id/pssh/article/view/1788