Olga Pombo
Special sciences and the unity of science
Springer, 2012
 eBooks
Zahariades, Damon
The Art of Letting go : Seni untuk melepaskan Strategi untuk Melepasakan Hidup mu
Gramedia Widisarana Indonesia, 2024
 Buku Teks
Theoria : a Swedish journal of philosophy and psychology
Copenhagen : C.W.K. Gleeup Lund
 Majalah, Jurnal, Buletin
Khan, Hazrat Inayat
Philosophy, Psychology, Mysticism
The Sufi International Headquarter's, 1956
 Buku Teks
Royce, James E.
Man and his nature: a philosophical psychology
McGraw-Hill, 1961
 Buku Teks