1. APHA (1992) Standard methods for the examination of water and wastewater, 18th edition. American Public Health Association (APHA), American Water Works Association (AWWA) and Water Pollution Control Federation (WPCF), Washington, DC
2. Appelo CAJ, Postma D (1993) Geochemistry, groundwater and pollution. A.A. Balkema Publishers, Rotterdam
3. Appelo CAJ, Postma D (2005) Geochemistry, groundwater and pollution, 2nd edn. A.A. Balkema Publishers, Rotterdam
4. Bakundukize C (2012) Hydrogeological and hydrogeochemical investigation of a precambrian basement aquifer in Bugesera Region (Burundi). PhD dissertation, Ghent University, Belgium, 430 p. + appendices
5. Bakundukize C, Van Camp M, Walraevens K (2011) Estimation of groundwater recharge in Bugesera region (Burundi) using soil moisture budget approach. Geol Belg 14(1–2):85–102