KADIR, Indri Indarti; ISKANDAR; FATMASARI, Elly. The Effect of Group Study on The English Learning Achievement of Students In Middle-School 1 Bunobogu. ETDC: Indonesian Journal of Research and Educational Review , [S. l.], v. 2, n. 2, p. 69–82, 2023. DOI: 10.51574/ijrer.v2i2.361. Disponível em: https://etdci.org/journal/ijrer/article/view/361. Acesso em: 30 jul. 2025.