The need for the presence, absence or alternation of the null subject in the Spanish language. Al-Adab Journal, [S. l.], v. 1, n. 136, p. 1–12, 2021. DOI: 10.31973/aj.v1i136.1182. Disponível em: https://aladabj.uobaghdad.edu.iq/index.php/aladabjournal/article/view/1182.. Acesso em: 6 jul. 2024.