Stonier, Alfred W.
Longman Group Limited, 1980
Buku Teks
Hague, Douglas C.
Longmans, Green and Co., 1955
Buku Teks
Nevin, Edward
Macmillan ; St. Martin's Press, 1960
Buku Klasik
Samuelson, Paul Anthony, 1915-2009
Bhratara, 1975
Buku Teks
Samuelson, Paul Anthony, 1915-2009
Bhratara, 1975
Buku Teks