Kice, John L.
New York Macmillan Publishing 1974,
Buku Teks
Nur Franisal
Bina sumber Daya MIPA, 2004
Buku Teks
Henning, Horst
"Leipzig: Johann Ambrosius Barth, 1972",
Buku Teks
Hill, John W.
Upper Saddle RIver Prentice Hall 1997,
Buku Teks
Wild, F.
At The University Press , 1953
Buku Teks SO