Mugenda, Olive M. Research methods : quantitative and qualitative approaches / Olive Mugenda, Abel G. Mugenda. - rev. ed. - Nairobi : ACTS Press, 2003. - xii, 256 p. ; 21 cm. ISBN: 9966411070 : KES 760 Subjects--Topical Terms: Social sciences--Research.Research--Data processing. LC Class. No.: H61 / .M84 2003