Beach, David P.
Handbook for scientific and technical research
Prentice-Hall, 1992
 Buku Referensi
Wilson, E. Bright
An Introduction to scientific research
McGraw-Hill, 1952
 Buku Teks SO
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
Ford, E. David
Scientific method for ecological research
Cambridge University Press, 2000
 eBooks