Encyclopedia of Mind Enhancing Foods, Drugs and Nutritional Substances, 2nd edition by David W. Group English | 2015 | ISBN-10: 0786441429 | 277 pages | PDF | 3 MB
Bernardo J. Carducci , Christopher S. Nave, "The Wiley Encyclopedia of Personality and Individual Differences, Volume 1: Models and Theories" English | ISBN: 1119057507 | 2020 | 480 pages | PDF | 7 MB
The Encyclopedia of Phobias, Fears, and Anxieties By Ronald M., Ph.D. Doctor, Ada P. Kahn, Christine A. Adamec 2008 | 572 Pages | ISBN: 0816064539 | PDF | 6 MB