Cintia, Deby, and Rahmah Evita Putri. “THE INSTRUMENT ANALYSIS OF STUDENTS COGNITIVE SKILL ON SOLAR SYSTEM TOPICS”. Universe 2, no. 2 (December 30, 2021): 113-117. Accessed February 5, 2025. http://universe.ppj.unp.ac.id/index.php/universe/article/view/65.