Brown, Dan
Auckland Doubleday, 2017
Buku Teks SO
Brown, Dan
Bantam Press, 2017
Buku Teks SO
Coon, Carleton S.
Alfred A. Knopf, 1962
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Spirkin, A.G.
[publisher not identified], [date of publication not identified]
Buku Teks SO
Damisch, Hubert
MIT Press, 2000
Buku Teks SO