Mancini, Marc, author
McGraw-Hill, 2003
Buku Teks
Mersini-Houghton, Laura, editor
Springer, 2012
eBooks
Augustynek, Zdzislaw, author
Kluwer Academic, 1989
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Melody, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Skripsi (Membership)
O`Sullivan, Arthur, author
Irwin McGraw-Hill, 2000
Buku Teks