Type: Article
Published: In Africa Research Bulletin: Economic, Financial and Technical Series volume 53 issue 3 (2016)
Type: Magazinearticle
Published: In Barron's (Chicopee, Mass.) volume 11 issue 47 (1931)
Type: Article
Published: In Bulletin of the World Health Organization volume 101 issue 12 (2023)
Type: Article
Published: In Bulletin of the World Health Organization volume 101 issue 12 (2023)
Type: Article
Published: In Historical research : the bulletin of the Institute of Historical Research volume 88 issue 241 (2015)