1. R.W. Dutton, J.I. Clarke, A.M. Battikhi, Arid Land Resources and Their Management, University of Durham, 1998.
2. Metodología en la intervención de las pinturas de Qusayr Amra, Jordania, Boletín del Instituto Andaluz del Patrimonio;Medina Flores;Histórico,2002
3. Infrared and Raman Users Group Spectral Database (IRUG). Philadelphia, 2000. Available from: .
4. International Centre for Diffraction Data (ICDD), The Joint Committee on Powder diffraction Standards (JCPDS), 1996. Available from: .