Wilson, E. Bright
An Introduction to scientific research
McGraw-Hill, 1952
Buku Teks
Freedman, Paul
The principles of scientific research
Public Affairs Press, 1950
Buku Teks
Russell, Richard Joel
Report on scientific research in Indonesia
May, 1960
Buku Teks
Ford, E. David
Scientific method for ecological research
Cambridge University Press, 2000
eBooks
E. David Ford
Scientific method for ecological research
Cambridge University Press, 2000
eBooks