Gaya APA

Posamentier, A, S. (2012). Teaching Secondary Mathematics : Techniques and Enrichment Units / Alfred S. Posamentier (ed. 8). USA: Cram 101,Inc..

Gaya MLA

Posamentier, Alfred, S.. "Teaching Secondary Mathematics : Techniques and Enrichment Units / Alfred S. Posamentier". ed. 8 USA: Cram 101,Inc., 2012. Buku.