Yang, Xiaoyun, author
Jiunge Chubanshe, 1991
Buku Teks
McCarthy, Bernice, author
American Society for Training & Development, 2007
eBooks
Backman, Fredrik, author
Noura Books, 2016
Buku Teks
Amol Titus, author
2015
Buku Teks
Amol Titus, author
2015
Buku Teks