KURNIAWAN, Robi; RESTI ANDANI, Lia; NOVITA YANDA, Sri. Is Group Investigation Technique Effective for Teaching Speaking in News Items? An Experimental Design at Senior High School. Jurnal Pendidikan Tambusai, [S. l.], v. 7, n. 1, p. 2159–2169, 2023. DOI: 10.31004/jptam.v7i1.5538. Disponível em: https://jptam.org/index.php/jptam/article/view/5538. Acesso em: 12 jul. 2025.