Ehrenberg, A.S.C.
Data reduction : analysing and interpreting statistical data
John Wiley & Sons, 1975
Buku Teks
Steinberg, Christian E.W.
Stress ecology; environmental stress as ecological driving force and key player in evolution
Springer, 2012
eBooks
Twesten, Gary
Wildlife ecology; a guide to the ecological approach of studying the wildlife of the central United States
Illinois Record Printing, 1989
Buku Teks
Analysing qualitative data in psychology
Evanthia Lyons, Adrian Coyle
Sage, 2007
Buku Teks
Gibbs, Graham R
Analysing qualitative data
Sage , 2013
Buku Teks SO