MARZUKI, M. THE EFFECT OF IMPLEMENTING A COOPERATIVE LEARNING MODEL OF GROUP INVESTIGATION (GI) TYPE ON STUDENT LEARNING OUTCOMES ON ECOSYSTEM MATERIALS IN CLASS XA OF STATE MIDDLE SCHOOL 2 SINTANG. NUSRA : Jurnal Penelitian dan Ilmu Pendidikan, [S. l.], v. 4, n. 4, p. 1091–1101, 2023. DOI: 10.55681/nusra.v4i4.1755. Disponível em: https://ejournal.nusantaraglobal.or.id/index.php/nusra/article/view/1755. Acesso em: 13 oct. 2024.