Gaya APA

Kellaghan, T, . et al (2009). Using the Results of a National Assessment of Educational Achivement . : The World Bank.Washington, D.C..

Gaya MLA

Kellaghan, Thomas, . et al. "Using the Results of a National Assessment of Educational Achivement". : The World Bank.Washington, D.C., 2009. Koleksi World Bank.