Spera, Christopher (1 June 2005). "A Review of the Relationship Among Parenting Practices, Parenting Styles, and Adolescent School Achievement". Educational Psychology Review. 17 (2): 125–146. CiteSeerX10.1.1.596.237. doi:10.1007/s10648-005-3950-1.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
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Spera, Christopher (1 June 2005). "A Review of the Relationship Among Parenting Practices, Parenting Styles, and Adolescent School Achievement". Educational Psychology Review. 17 (2): 125–146. CiteSeerX10.1.1.596.237. doi:10.1007/s10648-005-3950-1.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)