Lean Mei Li, Mya Khemlani David, Ngew Yeok Meng, editor
University of Malaya, 2011
Buku Teks
Rogers, Everett M., author
The Free Press, 1971
Buku Teks
edited by Caroline B. Brettell and Carolyn F. Sargent
Routledge, 2017
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edited by Barbara P. Uzzell, Marcel O. Ponton, Alfredo Ardila
Lawrence Erlbaum Associates, 2007
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[Springer, ], 2012
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