Eiser, Arthur L., author
Burgess , 1970
Buku Teks
Fischbach, Frances Talaska, author
Lippincott , 2000
Buku Teks
Estes, Mary Ellen Zator, author
Delmar , 1998
Buku Teks
Shoemaker, David P., author
McGraw-Hill, 1974
Buku Teks
Shoemaker, David P., author
McGraw-Hill, 1996
Buku Teks