Gershoff ET (27 augusti 2002). ”Corporal punishment by parents and associated child behaviors and experiences: a meta-analytic and theoretical review”. Psychol Bull "128" (4): ss. 539–79. doi:10.1037/0033-2909.128.4.539. PMID 12081081.
Larzelere RE, Kuhn BR (27 augusti 2005). ”Comparing child outcomes of physical punishment and alternative disciplinary tactics: a meta-analysis”. Clin Child Fam Psychol Rev "8" (1): ss. 1–37. doi:10.1007/s10567-005-2340-z. PMID 15898303.
Gershoff ET (27 augusti 2002). ”Corporal punishment by parents and associated child behaviors and experiences: a meta-analytic and theoretical review”. Psychol Bull "128" (4): ss. 539–79. doi:10.1037/0033-2909.128.4.539. PMID 12081081.
Larzelere RE, Kuhn BR (27 augusti 2005). ”Comparing child outcomes of physical punishment and alternative disciplinary tactics: a meta-analysis”. Clin Child Fam Psychol Rev "8" (1): ss. 1–37. doi:10.1007/s10567-005-2340-z. PMID 15898303.