Williamson, Bobette Hayes
How to train employees: a guide for managers
[American Management Association, ], 2007
 eBooks
Beckman, R.O.
How to train supervisors manual and outlines for determinate discussion
Harper , 1952
 Buku Teks SO
Shahraz, Qaisra
Train to Krakow
Mizan Publika, 2017
 Buku Teks SO
Glimmer Train
Portland : Glimmer Train Inc
 Majalah, Jurnal, Buletin
In Hun
Train of life
Foreign Languages Publishing House, 2014
 Buku Teks SO