Northridge, Natalie, Patrick O’Dowd, Leda Olia, and Samantha Redfern. “Multiple Motives: Selfishness, Altruism and Reciprocal Exchange in a Scottish Charity Shop”. The Unfamiliar 6, no. 1 (December 5, 2016). Accessed April 25, 2024. http://journals.ed.ac.uk/unfamiliar/article/view/1518.