Brown, William Adams, author
Brookongs Institutons, 1954
Buku Teks
Leyendecker, Hilary M., author
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Buku Teks
Thorp, Willard L., author
Organisation for Economic Co-operation and Development , 1964
Buku Teks
M. Furqon I. Hanief, author
Artikel Jurnal
J. Supranto, author
Lembaga Penerbit Fakultas Ekonomi Universitas Indonesia, 1980
Buku Teks