ISMAIL, A. G. .; JAAFAR, A. B. . Government Revenue in the Eyes of Abu Ubaid - An Analysis. International Journal of Asian Social Science, [S. l.], v. 5, n. 1, p. 1–17, 2015. DOI: 10.18488/journal.1/2015.5.1/1.1.1.17. Disponível em: https://archive.aessweb.com/index.php/5007/article/view/2711. Acesso em: 3 jul. 2024.