6 Amazing Experiences of Morocco

1. The Food of Morocco. Tess Mallos. Bay Books (Murdoch Books Pty Limited). 2008. P1.

Mystery of Machu Picchu

1. National Geographic Magazine. April 2011. Page 48.

2. Brian S. Bauer, University of Illinois at Chicago; R. Alan Covey, Southern Methodist University; Terence N. D’Altroy, Columbia University

3. National Geographic Magazine. April 2011. Page 45. 

4. Alex Chepstow-Lusty, Paleoecologist-French Institute for Andean Studies, Lima, Peru

5. National Geographic Magazine. April 1913.