Kariithi, Kinyua Kariithi Socio-economic impacts of white water rafting in River Tana: case study Riandira Sub-location / Stephen Kinyua Kariithi - 2007 - viii, 40 p. : ill., col. ; 30 cm. Dissertation (B.A. Tourism) - Makerere University, 2007 Includes bibliographical references (p.35 ) Subjects--Topical Terms: Tourism-- Kenya-- River Tana.