OECD (2008), "Table B1.1b - Annual expenditure per student on core services, ancillary services and R&D (2005) In equivalent USD converted using PPPs for GDP, by level of education and type of service, based on full-time equivalents: Primary, secondary and post-secondary non-tertiary education", in Education at a Glance 2008: OECD Indicators, OECD Publishing, Paris, https://doi.org/10.1787/eag-2008-tableb1_1b-en.