Saunders, Anthony, author
McGraw-Hill Book , 2003
Buku Teks
Shackelford, Bill, author
[American Society For Training & Development;, ], 2002
eBooks
Myers, Michele Tolela, author
McGraw-Hill, 1982
Buku Teks
Artikel Jurnal
Siti Rahmawati, author
Fakultas Ilmu Komputer Universitas Indonesia, 2017
UI - Tugas Akhir