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Buku Teks
Clements, John, 1946-, author
John Wiley & Sons, 1994
Buku Teks
American Management Association, 1957
Buku Teks
Black, James Menzies, author
Pustaka Binawan Pressindo, 1987
Buku Teks
Ayu Riska Rahmiyanti, author
Universitas Indonesia, 2012
UI - Skripsi (Open)