The encyclopedia of religion; Vol. I
edited by Mircea Eliade
Macmillan, 1987
 Buku Referensi
Damask, A.C.
Medical physics; Vol. I
Academic Press, 1981
 Buku Teks SO
Jesse, Kenneth E.
University physics; Vol I
Harcourt Brace Jovanovich, 1987
 Buku Teks SO
Basic statistics; Vol. I
edited by: Michael S. Lewis-Beck
Sage, 1993
 Buku Teks SO
Carnap, Rudolf
Introduction to semantics; Vol. I
Harvard University Press, 1946
 Buku Teks SO