by Aziz Alimul $9.00
by Hasanuddin $12.00
by Bambang Dwiloka & Rati Riana $9.00
by Syaifuddin $12.00
by Haryoto $5.00
by Ir. Hieronymus Budi Santoso $6.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by Nasution, Harun $5.00
by John Gray, Ph.D. $9.00
by Margaret Mitchell $26.00
by Asnath M. Fuah. Dkk $8.65