Stralen, Hans van
Quine, 1990
Buku Teks
edited by D.J. Weatherall, J.G.G. Ledingham, D.A. Warrell
Oxford University Press, 1987
Buku Teks
edited by A. Ghosh
E.J. Brill, 1990
Buku Referensi
Thomas, Henry H.
John Wiley & Sons, 1976
Buku Teks
Banerjee, Santo, editor
Springer, 2012
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