SITORUS, Nurhayati. The Students’ Errors in Speech Production on Interpersonal Speaking Class. Jurnal Studi Guru dan Pembelajaran, [S. l.], v. 4, n. 2, p. 297–301, 2021. DOI: 10.30605/jsgp.4.2.2021.567. Disponível em: https://www.e-journal.my.id/jsgp/article/view/567. Acesso em: 8 jul. 2025.