A letter in the science of calligraphy and pen to the minister Abi Ali Muhammad bin Muqla. Journal of the College of Basic Education, [S. l.], v. 24, n. 102, p. 453–484, 2022. DOI: 10.35950/cbej.v24i102.6229. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6229.. Acesso em: 30 jun. 2024.