Dobby, E.H.G. (Ernest Henry George), 1906-1981, author
University of London Press, 1960
Buku Teks
Dobby, E.H.G. (Ernest Henry George), 1906-1981, author
John Wiley & Sons, 1950
Buku Teks
Dobby, E.H.G. (Ernest Henry George), 1906-1981, author
University of London Press, 1967
Buku Teks
Mackay, Robert, 1940-, author
UCL Press, 1999
Buku Teks
Gladys Berlyana, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia , 2020
UI - Tugas Akhir