HE, F. An Overview of Research on the Issue of Reference. Pacific International Journal, [S. l.], v. 6, n. 2, p. 216–220, 2023. DOI: 10.55014/pij.v6i2.387. Disponível em: http://rclss.com/index.php/pij/article/view/387. Acesso em: 9 sep. 2026.