Hanley, N. author
CBS Publishers & Distributors Pvt Ltd, 2016
Buku Teks
Wang, K.P.
Westview Press, 1977
Buku Teks
Austin, George T.
McGraw-Hill, c1986
Buku Teks SO
Broekmans, Maarten A.T.M., editor
Springer, 2012
eBooks
edited by Philip Daniel, Michael Keen and Charles McPherson
Routledge/International Monetary Fund, 2010
Buku Teks SO