“Development of Thematic Teaching Materials Based on Discovery Learning in Elementary School”. JOURNAL OF TEACHING AND LEARNING IN ELEMENTARY EDUCATION (JTLEE) 4, no. 1 (March 9, 2021): 122–130. Accessed December 7, 2025. https://jtlee.ejournal.unri.ac.id/index.php/JTLEE/article/view/156.