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
Mollett, Amy
Communicating your research with social media a practical guide to using blogs, podcasts, data visualisations and video
SAGE, 2017
 Buku Teks SO
Leedy, Paul D.
Practical research: planning and design
Pearson Education, 2005
 Buku Teks SO
Surmanek, Jim
Media planning : a practical guide
NTC Business Books, 1989
 Buku Teks SO
French, Sally
Practical research : a guide for therapists
Butterworth-Heinemann, 2001
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