So far; Campbell (1982), Cummings (2007), Hambrick (1994), JEP (2003), Kendall (1997), La Greca (2005), Levant (1992), Lustig and Strauser (2004), Shaver (2006, 2008), Thompson (2002).
See also Wilkinson and the Taskforce on Statistical Inference (1999), the Publication Manual of the APA (2010, p.35), and the AERA’s Standards for Reporting (AERA 2006, p.10).
For a full list of references, click here.
Notice that the new guidelines for the Journal of Experimental Psychology: General are explicit on this question:
“Authors are urged to consider reporting effect sizes and confidence intervals around them and to discuss the substantive significance of their results in addition to their statistical significance.”