Harisna, Rubita, and Joko Sutarto. “Effectiveness of Environmental Based Thematic Learning Tools (EBTLT) in Improving the Science Literacy Skills”. Journal of Primary Education 9, no. 5 (December 31, 2020): 554-561. Accessed May 2, 2024. http://journal.unnes.ac.id/sju/jpe/article/view/43583.