edited by Karen Menke Paciorek, Joyce Huth Munro
McGraw-Hill, 2002
Buku Teks
Joy D. Osofsky and Hiram E. Fitzgerald, editors
John Wiley & Son, 2000
Buku Teks
california state departement of educatio, 1956
Buku Teks
Evans, Ellis D.
Holt, Rinehart and Wiston, 1971
Buku Teks
Herr, Judy, author
Wadsworth and Cengage Learning, 2013
Buku Teks