Perthel, Dirk, author
Amsterdam University, 1981
Buku Teks
Ohlin, Goran
Paris OECD Development Centre 1967,
Buku Teks
Johansen, Leif, author
North-Holland, 1974
Buku Teks
Cline, William R., author
Praeger, 1972
Buku Teks
Pasinetti, Luigi L.
Cambridge Cambridge University Press 1974,
Buku Teks