Oso, Willis Yuko $Onen, David. A general guide to writing research proposal and report A handbook for beginning researchers Oso, Willis Yuko $ Onen, David. - 3rd ed - Nairobi, Kenya The Jomo Kenyatta Foundation 2009 - ix,182p 21cm ISBN: 9966227164 LC Class. No.: LB 2369 / .O86 2009