A Symposium on light and life/edited by William D. McElroy and Bentley Glass
The Johns Hopkins Press, 1961
Buku Teks
Carey, Steven D.
Study guide to accompany: the physical universe
Mc Graw-Hill, 2000
Buku Teks
Carey, Steven D.
Study guide to accompany : the physical universe
McGraw-HIll, 2000
Buku Teks
Strahler, Arthur N.
Study guide for modern physical geography
John Wiley & Sons, 1983
Buku Teks
Gatrell, Caroline
Managing part-time study : a guide for undergrauates and postgrauates
McGraw-Hill, 2006
Buku Teks