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Buku Teks
Syarifuddin, author
Absolute Media, 2018
Buku Teks
Mooney, Gavin H., author
Harvester Wheatsheaf, 1994
Buku Teks
Routledge, 2004
Buku Teks
Hood, Roger G., author
McGraw-Hill, 1971
Buku Teks