Karina Rizky Puteri
Analisis customer engagement national geographic indonesia = Customer engagement analysis of national geographic indonesia
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
 UI - Makalah dan Kertas Kerja
Parikh, Ashok K.
Techniques of economic analysis with applications
Harvester Wheatsheaf, 1990
 Buku Teks SO
Helfert, Erich A.
Techniques of financial analysis
Richard D. Irwin, 1982
 Buku Teks
Surface analysis - the principal techniques
John C. Vickerman, editor
John Wiley & Sons, 2008
 Buku Teks SO
Benavie, Arthur
Mathematical techniques for economic analysis
Prentice-Hall, 1972
 Buku Teks SO