“… Source: Bond et al (2015), Botes and Van Rensburg (2000), Clarke et al (2014), Colin (2012), Edkarl (2017), Emerging Markets Consulting (2014), Hall et al (2016), Hulland et al (2015), Layton and Layton (2010), Marshall and Kaminsky (2016), Mutiro (2013), Quattri and Smets (2014), Ramesh et al (2015), Schwemlein et al (2016), UNICEF (2016) and Weidner (2014). SDG: Sustainable Development Goals; rWASH: rural water, sanitation and hygiene. …”