Bell, J.D. et al. (2007). Grow-out of sandfish Holothuria scabra in ponds shows that co-culture with shrimp Litopenaeus stylirostris is not viable. Aquaculture 273(4):509-519
Development Research Group, Finance and Private Sector Development Unit (World Bank), 'Global Financial Inclusion (Global Findex) Database 2017 (Senegal)', 2018
Stephen Taylor (Department of Basic Education); Brahm Fleisch (University of the Witwatersrand), 'Early Grade Reading Study II 2017: Wave 1 (South Africa)', 2020