Meier, Gerald M.
Oxford University Press, 1965
Buku Teks SO
Meir, Gerald M.
Oxford University Press, 1971
Buku Teks SO
Meier, Gerald M.
Oxford University Press, 1970
Buku Teks SO
Adelman, Irma
Stanford University Press, 1961
Buku Teks SO
Mundell, Robert A.
Edwar Elgar, 2003
Buku Teks SO