Newnan, Donald G., author
Binarupa Aksara, 1990
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Newnan, Donald G., author
Engineering Press, 1991
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Artikel Jurnal
Tri Ratna Kurnia, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Tugas Akhir
Thuesen, H.G., author
Prentice Hall India, 1981
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