El-Khawas, E. (2001). Accreditation in the USA: Origins, developments and future prospects. International Institute for Educational Planning.
Παραπομπή σε μορφή Chicago (17η εκδ.)El-Khawas, Elaine. Accreditation in the USA: Origins, Developments and Future Prospects. Paris: International Institute for Educational Planning, 2001.
Παραπομπή σε μορφή MLA (9th εκδ.)El-Khawas, Elaine. Accreditation in the USA: Origins, Developments and Future Prospects. International Institute for Educational Planning, 2001.
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