Newmark, Amy, author
Gramedia Pustaka Utama, 2017
Buku Teks
Kubler-Ross, Elisabeth, author
Haru Media Sejahtera, 2022
Buku Teks
Ray, James Arthur, author
Gramedia Pustaka Utama, 2009
Buku Teks
Ziglar, Zig, author
Binarupa Aksara, 1995
Buku Teks
Al-Qarni, Aidh Abdullah, author
Maghfirah, 2004
Buku Teks