Lally Phillippa (2009). "How are habits formed: Modelling habit formation in the real world". European Journal of Social Psychology. 40 (6): 998–1009. doi:10.1002/ejsp.674. hdl:10400.12/3364.
Lally Phillippa (2009). "How are habits formed: Modelling habit formation in the real world". European Journal of Social Psychology. 40 (6): 998–1009. doi:10.1002/ejsp.674. hdl:10400.12/3364.