Gaya APA

DUFFY, T, M, (., JONASSEN, D, H, (. (1992). CONTRUCTIVISM and the technology of instruction: . London: Lawrence Erlbaum Associates.

Gaya MLA

DUFFY, Thomas, M., (ed.)., JONASSEN, David, H., (ed.). "CONTRUCTIVISM and the technology of instruction:". London: Lawrence Erlbaum Associates, 1992. Buku.