{{Cite journal| doi = 10.1186/s12992-020-00571-6| issn = 1744-8603| volume = 16| issue = 1| last1 = Samb| first1 = Oumar Mallé| last2 = Essombe| first2 = Christiane| last3 = Ridde| first3 = Valery| title = Meeting the challenges posed by per diem in development projects in southern countries: a scoping review| journal = Globalization and Health| access-date = 2020-09-01| date = 2020| url = https://globalizationandhealth.biomedcentral.com/articles/10.1186/s12992-020-00571-6}}