edited by Klaus Florey
Academic Press, 1984
Buku Teks SO
edited by Brett A. Lidbury, Suresh Mahalingam
CRC Pres/Taylor & Francis Group, 2009
Buku Teks
edited by Alberto Frigerio
Elsevier, 1983
Buku Teks
Treadwell, F.P., author
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Buku Teks
by Asia Pacific Economics Group
Jakarta Post, 1996
Buku Teks