Kraan, Alfons van der
Center for South-East Asian Studies, 1998
Buku Teks
Seki, Keizo, author
Japan Society for the Promotion of Science , 1956
Buku Teks
Matsuo, Hiroshi
The Institute of Developing Economics , 1970
Buku Teks
Cox, Clifton B.
Harvard Univ.Graduate School of Business Administration Div. of Research , 1959
Buku Teks
Robson, R., author
Macmillan, 1957
Buku Teks