The Commision, 1980
Buku Teks
Bahrullah Akbar, author
IPKN (Institut Pemeriksa Keuangan Negara), 2021
Buku Teks
The National Council on Public Works Improvement , 1988
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Nestle Foundation
Nestle Foundation, 2008
Buku Teks
Edwards, Edgar O.
Columbia University Press, 1974
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