Routledge , 1990
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edited by Nigel Wheale
Routledge, 1995
Buku Teks
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American Management Association, 2006
eBooks
Sembiring, Dermawan,author
Universitas Indonesia, 1997
UI - Tesis (Membership)
Alvaro Rahman Hakim, author
Fakultas Teknik Universitas Indonesia, 2023
UI - Skripsi (Membership)