Vasanti Jadva et al. (2010); Jeanne Maglaty (2011).
41
Anthony Pellegrini (1989); Robert Fagen (1993); Pellegrini and Peter Smith (1998).
42
Jennifer Sauver et al. (2004).
43
Janet DiPietro (1981); Peter Lafreniere (2011).
44
Stewart Trost et al. (2002).
45
Maïté Verloigne et al. (2012).
46
Pedro Hallal et al. (2012).
47
Anthony Pellegrini (2010).
48
Eleanor Maccoby (1998).
49
Carol Martin and Richard Fabes (2001), p. 443.
50