@book{ BB25632016, author = "Gough, David A and Oliver, Sandy and Thomas, James", title = "Aims, principles, diversity and contexts", publisher = "Sage Reference", year = "2018", series = "Fundamentals of applied research", number = ". Systematic reviews and research / edited by David Gough, Sandy Oliver and James Thomas ; v. 1", URL = "https://ci.nii.ac.jp/ncid/BB25632016" }