by P.E. Lorenz $5.00
by Steven Dowsen, dkk $13.00
by dr. Santoso Gunardi, MS, PAK $6.00
by dr. Keneth Iyan, dkk. $9.00
by Donald L. Levene & John L. Provan, MD $5.00
by Prof. Dr. dr. H. Dadang Hawari, Psikiater $6.00
by Jim Brown, Ph.D $7.00