Gillespie, Sheena
Scott, Foresman and Company, 1986
Buku Teks
Connelly, Mark
Wadsworth and Cengage Learning, 2013
Buku Teks
Penfield, Elizabeth
Scott, Foresman and Company, 1985
Koleksi Publik
Mcmahan, Elizabeth
McGraw-Hill, 1984
Buku Teks
Bloom, Lynn Z.
D.C. Health and Company, 1984
Buku Teks