Purwanto, Aji, and Wanda Nugraha Yanuarto. “Effectiveness of RADEC Learning Model in Developing Critical Thinking Skills of Elementary School Students: A Systematic Literature Review”. Proceedings Series on Social Sciences & Humanities 25 (August 23, 2025): 197–205. Accessed July 5, 2026. http://conferenceproceedings.ump.ac.id/pssh/article/view/1690.