DEVELOPMENT OF SCIENCE LITERACY TEST INSTRUMENT ON TEMPERATURE, HEAT AND EXPANSION MATERIALS AT SMP NEGERI 8 MEDAN. universe [Internet]. 30 Juli 2025 [dikutip 13 Agustus 2026];6(1):1-11. Tersedia pada: http://universe.ppj.unp.ac.id/index.php/universe/article/view/1024