Haring, Lloyd
Introduction to scientific geographic research
Wm.C. Brown, 1983
Buku Teks SO
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
Hillway, Tyrus
Introduction to research
Houghton Miffiln, 1964
Buku Teks SO
Russell, Richard Joel
Report on scientific research in Indonesia
May, 1960
Buku Teks SO