DIJKGRAAF, C. Renovaties in de oude stadskern van Sana’a, Yemen. Bulletin KNOB, [S. l.], v. 88, n. 6, p. 31–35, 1989. DOI: 10.7480/knob.88.1989.6.582. Disponível em: https://bulletin.knob.nl/index.php/knob/article/view/Dijkgraaf31. Acesso em: 13 mei. 2024.