Margenau, Henry
Time Incorporated, 1964
Buku Referensi
Arczewski, K.
Ellis Horwood , 1993
Buku Teks
edited by Kenneth J. Arrow, Samuel Karlin, and Patrick Suppes
Stanford University Press, 1960
Buku Teks
Fletcher, Glenn
Wm. C. Brown, 1994
Buku Teks
Chiang, Alpha C., 1927-
McGraw-Hill, 1984
Buku Teks