Chalofsky, Neal
American Society for Training & Development Press, 2001
eBooks
Fern, Edward F.
Sage, 2001
Buku Teks SO
edited Graham R. Walden
Sage, 2012
Buku Referensi
Morgan, David, L.
Sage, 2019
Buku Teks SO
Smith, Joan Macfarlance
Routledge & K. Paul, 1972
Buku Teks