Hackstaff, Karla B.
Temple University Press , 1999
Buku Teks
Wallerstein, Judith S., author
Hyperion, 2000
Buku Teks
Lauer, Robert H., author
McGraw-Hill, 2012
Buku Teks
Adrian Jazmi Pirago, author
2015
UI - Tugas Akhir
Harvey, John H., author
Lawrence Erlbaum Associates, 2004
Buku Teks