The Individual and everybody else
edited by George P. Stein, Agnes Stein
Prentice-Hall, 1973
 Buku Teks
Flim, Else
Helft nadert / Else Flim
Manteau, 1994
 Buku Teks
Callahan, Madelyn
From training to performance consulting: human performance improvement
[American Society for Training and Development Press, American Society for Training and Development Press], 2006
 eBooks
Kania Dea Paramita
Perbedaan tingkat kecemasan performa musikal antara pemain musik klasik yang tampil secara solo, duo, dan trio, atau lebih = The level difference of musical performance anxiety between classical music players who perform solo, duo, and trio, or more.
Fakultas Psikologi Universitas Indonesia, 2013
 UI - Skripsi (Membership)
Schnitzler, Arthur
Leutant Gustl Fraulein Else / Arthur Schnitzler
Fischer, 1981
 Buku Teks