Andrews, Gavin J., 1970-
Non-representational theory and​ health: the health in life in space-time revealing
Routledge, Taylor & Francis Group, 2018
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Blaxter, Loraine
How to research
Open University Press , 1996
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Operation research
Juanda Napitupulu ... [et.al.]
Bagian penerbitan Institut Nasional Malang, 1998
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Wicks, C.T.
Operational research
Pan Books, 1971
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Gillham, Bill
The research interview
Continuum, 2000
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