Frost, S.E.
Basic teachings of the great philosophers
Barnes and Noble, 1957
 Buku Teks
Hildebrand, David K., 1940-
Basic statistical ideas for managers
Duxbury Press, 1996
 Buku Teks
Stuart, Alan
Basic ideas of scientific sampling
Charles Griffin, 1976
 Buku Teks
Oral health survey : basic methods
World Health Organization
World Health Organization, 1997
 Buku Teks
Albrecht, Robert L.
Basic
John Wiley , 1978
 Buku Teks SO