Ness, Patrick, 1971-
The knife of never letting go ; pisau luka
PT. Gramedia Pustaka Utama, 2018
 Buku Teks
Miller, Emmett E.
Letting go of stress: four effective techniques for relaxation and stress reduction
E. Miller; S. Halpern, 1980
 Multimedia
Shlosberg, Matt
Letting people go : the people-centered approach to firing and laying off employees
Business Expert, 2010
 Buku Teks
Letting go of stress: four effective techniques for relaxation and stress reduction
E. Miller; S. Halpern, 1980
 Multimedia
Zahariades, Damon
The Art of Letting go : Seni untuk melepaskan Strategi untuk Melepasakan Hidup mu
Gramedia Widisarana Indonesia, 2024
 Buku Teks