Wilson, Bright E., Jr.
An introduction to scientific research / E. Bright Wilson, Jr.
Dover Publications, 1990
 Buku Teks SO
Haring, Lloyd
Introduction to scientific geographic research / Lloyd Haring, John F. Lounsbury
Wm. C. Brown Co. Pub., 1983
 Buku Teks SO
Beach, David P.
Handbook for scientific and technical research
Prentice-Hall, 1992
 Buku Referensi
Freedman, Paul
The principles of scientific research
Public Affairs Press, 1950
 Buku Teks SO
Russell, Richard Joel
Report on scientific research in Indonesia
May, 1960
 Buku Teks SO