Winfeld, Liz, author
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eBooks
Dobson, James
Kingsway Pubb., 1987
Buku Teks
Jakarta : FK-UI, 2005,
Majalah, Jurnal, Buletin
Batten, J. D.
D.B. Taraporevala Sons & Co., 1963
Buku Teks
Anil K. Bhowmick, editor
CRC Press, Taylor & Francis Group, 2008
Buku Teks