Pekka LeviƤkangas, author
Faculty of Engineering, Universitas Indonesia, 2011
Artikel Jurnal
[Fakultas Teknik UI, VTT Technical Research Centre of Finland], 2011
Artikel Jurnal
Artikel Jurnal
by E. Wight Bakke [and others]
John Wiley & Sons, 1954
Buku Teks
Lipset, Seymour Martin, author
University of California, 1967
Buku Teks