- J, Ramdani A, Setiadi D. DEVELOPMENT OF LEARNING DEVICE OF EMPOWERMENT THROUGH THINKING NATURAL SCIENCE LEARNING IN ELEMENTARY SCHOOL. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2018 Jan. 15 [cited 2024 May 5];4(1). Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/96