Heskett, J.L.
The Ronald Press Comp., 1964
Buku Teks
Heshett, J.L.
The Ronald Press Comp., 1964
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Brown, Robert Goodell, author
John Wiley & Sons, 1977
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Manna, Amalesh Kumar, author
Taylor and Francis, 2018
Artikel Jurnal
Baily, P.J.H.
Chapman and Hall , 1973
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