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Yola Navigation System

Simon Samuel Usman

出版	American University of Nigeria, 2013
URL	http://books.google.com.hk/books?id=3WnZuQEACAAJ&hl=&source=gbs_api

註釋

Availability and accessibility of comprehensive information, which is a primary ingredient for development in any society is scarce, and access to information about businesses in Yola is limited. Visitors also face a challenge of interacting with the city.