Julia Suleeman, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Laporan Penelitian
Frankl, Viktor E. (Viktor Emil), author
Noura Books, 2021
Buku Teks
Hanna Sabrina Alfian, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Skripsi (Membership)
edited by Gian-Vittorio Caprara and Guus L. Van Heck
Harvester Wheatsheaf, 1992
Buku Teks
Ribka, author
Fakultas Ilmu Keperawatan Universitas Indonesia , 2020
UI - Skripsi (Membership)