How does the socio-economic status (SES) of students effect the quality of education received? Does this effect student achievement; and does this have an effect on their higher education?

This paper needs to use Australian, peer reviewed, references only.
Including a reference page at the end including all citations used.
Topics that need to be covered are:
1) What is social class and social economic status?
2)Does SES effect the quality of education received by Australian students?
3)Does SES effect student achievement?
4)Policy and reform addressing issues of varying social status of students in schools
5)High-school to higher education participation of students from different socio-economic backgrounds
Referencing style is Harvard.