Green, James H., author
McGraw-Hill, 1984
Buku Teks
Fruehling, Rosemary T., author
McGraw-Hill, 1987
Buku Teks
Oliverio, Mary Ellen, 1926-, author
South Western Cengage Learning, 2013
Buku Teks
Newman, William M.
McGraw-Hill, 1987
Buku Teks
Doris, Lillian, author
Prentice-Hall, 1970
Buku Referensi