edited by Peter G. Gowing and Robert Day McAmis
Solidaridad Pub. House, 1974
Buku Teks
Denzin, Norman K., author
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Buku Teks
edited by Cho Hui-yon, Lawrence Surendra and Cho Hyo-je
Routledge; Oxon, 2013
Buku Teks
Cherry, Barbara, author
Elsevier , 2011
Buku Teks
Laudon, Kenneth C., 1944-, author
Macmillan, 1991
Buku Teks