@book{Croft_Davison_2020, address={Harlow, England}, edition={Seventh edition}, title={Foundation maths}, url={https://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=4841648670002418&institutionId=2418&customerId=2415}, publisher={Pearson}, author={Croft, Tony and Davison, Robert}, year={2020} }
@misc{Elementary Algebra Textbook, url={http://mathrev.redwoods.edu/ElemAlgText/} }
@misc{Mathematics Enhancement Programme, url={http://www.cimt.org.uk/projects/mepres/alevel/alevel.htm} }
@misc{Underground Mathematics, url={https://undergroundmathematics.org/} }
