Higher Education Frequently Asked Questions How to get help with reference portal? All references must be provided through the HODSPA hosted www.psychologyreference.org– a guide to the service can be found here. Please refer to the admission criteria of the course you are applying for, to see if references are required. This is an external service. Cairnmillar cannot assist you with using this system. Please contact the service directly if you have problems or issues with using their system: [email protected].