Digna Futika
Skala Pengembangan Baru "I'll Call You" Relationship Assertiveness Scale = A Newly Developed Scale: “I’ll Call You” Relationship Assertiveness Scale
Fakultas Psikologi Universitas Indonesia, 2016
 UI - Tugas Akhir
Read every chance you get... but don't forget to catch the ball
 Artikel Jurnal
Perry, Philippa
The book you wish your parents had read : and your children will be glad that you did
Renebook, 2022
 Buku Teks SO
Stuart, Donald
I think i'll live
Melbourne Georgian House 1981
 Buku Teks
Buchwald, Art
You can fool all of the people all the time
[United State] : [publisher not identified], 1984,
 Buku Teks