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2. UNESCO Decision CONF 004 IX.A – Inscription: The Alhambra and the Generalife, Granada (Spain), September 1984.
3. Technology of rammed-earth constructions (“Tapial”) in Andalusia (Spain): Their restoration and conservation;Sebastián,2010
4. Practical Building Conservation, Earth, Brick & Terracotta – Part A. Ashgate, London, 2015.
5. A study of the wall material in the Alhambra (Granada, Spain);de la Torre López;Cem. Concr. Res.,1996