Obed Junior, author
PT Anak hebat Indonesia, 2023
Buku Teks
Waitley, Denis, author
Pocket Books, 1987
Buku Teks
Nevid, Jeffrey, author
Erlangga, 2014
Buku Teks
Nevid, Jeffrey S., author
Erlangga, 2014
Buku Teks
Shafina Astagina, author
Fakultas Psikologi Universitas Indonesia, 2020
UI - Skripsi (Membership)