الشيباني عبد الرحمن بن عبيد بن منير. The necessity of omission in the graduations of grammarians in the book “Daa’ir al-Sha’ar” by Ibn Asfour. Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 3, n. 4, 2023. DOI: 10.56989/benkj.v3i4.250. Disponível em: https://benkjournal.com/index.php/benkj/article/view/250. Acesso em: 25 apr. 2026.