Popham, W. J. (1990). Modern educational measurement: A practitioner's perspective (2d ed.). Prentice-Hall.
Chicago Style aipamenaPopham, W. James. Modern Educational Measurement: A Practitioner's Perspective. 2d ed. Englewood Cliffs, N. J: Prentice-Hall, 1990.
MLA aipamenaPopham, W. James. Modern Educational Measurement: A Practitioner's Perspective. 2d ed. Prentice-Hall, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.