“…The types of questionnaires utilized with regards to WTP were mainly interviewer-administered questionnaires, found in nine studies (Asiki et al, 2013;Deschamps et al, 2013;Kiwanuka et al, 2013;Middelkoop et al, 2008;Newman et al, 2014;Olanrewaju et al, 2014;Otwombe et al, 2011;Ruzagira et al, 2009;Suhadev et al, 2009) (Table S1). Two studies utilized a self-administered questionnaire (Chariyalertsak et al, 2011;de Bruyn et al, 2008;C.…”