ARTA, B. Multiple Studies: The Influence of Collaborative Learning Approach on Indonesian Secondary High School Students’ English-Speaking Skills. English Language Teaching Educational Journal, [S. l.], v. 1, n. 3, p. 149–160, 2019. DOI: 10.12928/eltej.v1i3.143. Disponível em: http://journal2.uad.ac.id/index.php/eltej/article/view/143. Acesso em: 2 may. 2024.