SIREGAR, Hiba Dertyana; ., Motlan. THE EFFECT OF KOOPERATIF LEARNING MODEL TYPE GROUP INVESTIGATION AND FIRST CONCEPT UNDERSTANDING TO SCIENCE PROCESS SKILL OF SENIOR HIGH SCHOOL STUDENT. Jurnal Pendidikan Fisika, [S. l.], v. 5, n. 1, p. 51–57, 2016. DOI: 10.22611/jpf.v5i1.3707. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpf/article/view/3707. Acesso em: 9 jul. 2025.