Giulio Preti, editor; Jennifer Sardo Infirri, translator
Quintessence publishing, 2008
Buku Teks
Sarah A. Raskin, editor
Guilford Press, 2011
Buku Teks
Valle, Jan W., author
McGraw-Hill, 2011
Buku Teks
Pountney, Jackie, author
Learning Matters, 2011
Buku Teks
Stevens, Carolyn S., 1963-, author
Routledge, 2013
Buku Teks