by Suryokusumo, Sumaryo $6.00
by Dr. W. Herdin Sibuea., dkk $7.00
by Tarwoto $9.00
by Katzung $26.00
by Sutanto $5.00
by Drs. Daryanto $7.00
by Shelly $26.00
by Daniel Goleman, Ph.D. $12.00
by Suhrawardi K. Lubis, S. H. $11.00