Hoggart, Keith
Rural development : a geographical perspective
Routledge, 2016
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Wadsworth, Richard
Geographical information systems for ecology: an introduction/Richard Wadsworth & Jo Treweek
Longman limited , 1999
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Oliver, Richard L.
Satisfaction: a behavioral perspective on the consumer/Richard L. Oliver
McGraw-Hill , 1996
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Pathways to Asia: the politics of engagement / edited by Richard Robinson
St. Leonards Allen and Unwin , 1996
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Principles of marketing research / edited, Richard P. Bagozzi
Blackwell Business, 1996
 Buku Teks SO