SHAMS, S. A.; ANWAR, Z. ul H.; ZAHEER, S. The Acquisition of Principles and Parameters by Children Learning Urdu. Pakistan Languages and Humanities Review, Gujranwala, Pakistan, v. 6, n. 4, p. 562–570, 2022. DOI: 10.47205/plhr.2022(6-IV)51. Disponível em: https://ojs.plhr.org.pk/journal/article/view/327. Acesso em: 5 may. 2024.