Kamande, Regina Wairimu; Kiragu, David Ndung'u; Musumba, George Wamamu(International Journal of Economics, Commerce and Management United Kingdom, 2018-05)
M Temmerman; P Gichangi; L Apers; P Claeys; L Van Renterghem; Kiragu, David Ndung'u; G Karanja; J Ndinya-Achola(International Centre for Reproductive Health, Department of Obstetrics and Gynaecology, University of Ghent, Belgium, 2000-04)