Sunim, Haemin
When Things Don't Go Your Way : ketika yang terjadi tak sesuai harapan:pedoman hidup zen untuk masa-masa sulit
PT Grafika Mardi Yuana, 2024
 Buku Teks SO
Men in difficult times: masculinity today and tomorrow
edited by Robert R. Lewis
Prentice-Hall, 1981
 Buku Teks SO
Lemon Psychology
Don't let your mood become your attitude
Haru Media, 2023
 Buku Teks SO
Stern, David
How libraries make tough choices in difficult times : purposeful abandonment
Chandos, 2013
 eBooks
Switch how to change things when change is hard
Chip Heath and Dan Heath
Broadway Books, 2010
 Buku Teks SO