WinarniEndang Widi, Daimun Daimun, Purwandari Endina Putri, and Sigit Sucipto. 2020. “The Effect of Environment Literacy in Thematic Learning on Writing Skills and Attitude to Fourth-Grade Elementary School Students”. International Conference on Elementary Education 2 (1). Bandung, Indonesia, 413-22. http://proceedings2.upi.edu/index.php/icee/article/view/645.