MillerJ. (2008) Teruko Mizushima: pioneer trader in time as currency. Intersections: Gender and Sexuality in Asia and the Pacific. http://intersections.anu.edu.au/issue17/miller.htm (accessed Aug. 28, 2017).
2.
TimeBanks USA. https://timebanks.org/timebanksusa/ (accessed Aug. 29, 2017).
BerryD. The sharing economy comes to scientific research. https://theconversation.com/the-sharing-economy-comes-to-scientific-research-55368 (accessed Sep. 1, 2017).