Bhattacharyya, Dipak Kumar
Human resource research methods
Oxford University Press , 2014
 Buku Teks
Qualitative methods in organizational research: a practical guide
edited by Catherine Cassel and Gillian Symon
Sage, 1994
 Buku Teks SO
Qualitative methods in organizational research: a practical guide
edited by Catherine Cassel and Gillian Symon
Sage, 1995
 Buku Teks SO
Jacobsen, Kathryn H.
Introduction to health research methods : a practical guide
Jones & Bartlett Learning, 2017
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Research methods in language policy and planning : a practical guide
edited by Francis M. Hult and David Cassels Johnson
Wiley Blackwell, 2015
 Buku Teks SO