by Robert K. Cooper, Ph.D. Ayman Sawaf $13.00
by Vincent Gaspersz $9.00
by Hilman Hariwijaya & Boim Lebon $6.00
by Siswandi, Drs. $8.00
by Diana Palmer $7.00
by Hilman Hariwijaya $5.00
by Nurul Huda SA $9.00
by Drs. H. Burhanuddin Salam, M.M $11.00
by Dra. Khusnul Khotimah $6.00
by S.F. Habeyb $16.00
by Prof. Dr. Spillane, SJ $6.00
by Prof. dr. Unandar Budimulja, dr. Kusmarinah Bramono $7.00