Ahmad Sjalabi, author
Djajamurni, 1964
Buku Teks
Betsy Kurniawati Witarsa, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Skripsi (Membership)
Schuon, Frithjof
Yayasan Obor Indonesia, 1987
Buku Teks
Turner, Bryan S., author
IRCISOD, 2003
Buku Teks
Kartini Sukardji, author
Angkasa, 1993
Buku Teks