Thuesen, H.G., author
Prentice Hall India, 1981
Buku Teks
E. Paul DeGarmo ... [et al.]
Prentice-Hall, 1997
Buku Teks
Sullivan, William G., 1942-, author
Prentice-Hall, 2000
Buku Teks
DeGarmo, E. Paul
Macmillan, 1984
Buku Teks
Thuesen, H.G., author
Prentice-Hall, 1971
Buku Teks