Dharma, S., Hodriani, H., Halking, H. and Nababan, R. 2022. Eco-Literacy Citizenship Education Materials Based on Cultural Value: Research and Development Study at Universitas Negeri Medan. Randwick International of Education and Linguistics Science Journal. 3, 3 (Sep. 2022), 537-544. DOI:https://doi.org/10.47175/rielsj.v3i3.542.