Bryman, Alan (2014). "June 1989 and beyond: Julia Brannen's contribution to mixed methods research". International Journal of Social Research Methodology. 17 (2): 121–131. doi:10.1080/13645579.2014.892653. S2CID143731100.
Bryman, Alan (2014). "June 1989 and beyond: Julia Brannen's contribution to mixed methods research". International Journal of Social Research Methodology. 17 (2): 121–131. doi:10.1080/13645579.2014.892653. S2CID143731100.