Grateful acknowledgement is made to the following sources:
Photographs and images
Traditional Akan weights: http://www.metmuseum.org/ search-results?ft=Traditional+Akan+weights&rpp=10&pg=2 [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 2008)
Every effort has been made to contact copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.
Resource 4: Traditional weights used in Ghana
Section 5: Investigating distance