Fisher, Ronald C., author
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Buku Teks
Lutz, Harley Leist, author
D. Appleton-Century, 1947
Buku Teks
Fisher, Ronald C., author
Routledge, 2016
Buku Teks
Hicks, Ursula K., author
Kinokuniya , 1959
Buku Teks
Rosen, Harvey S., author
McGraw-Hill, 2010
Buku Teks