Leong, Goh Cheng
Oxford University Press, 1973
Buku Teks
Mou-Lih, Goh
Melbourne, Vic Department of Economics and Finance Faculty of Business 1994,
Buku Teks
John Solomonī¸
Nakanishi Printing Company, 2023
Artikel Jurnal
St. Lucia, 1973
Buku Teks
edited by Ronald Beiner
State University, 1995
Buku Teks