by Vaclav Havel $6.00
by Kak Seto (Kata Pengantar) $9.00
by Ir. Rustam Hakim, M.T., IALI $0.00
by Zainuddin HM $5.28
by Alfons Taryadi $7.00
by Bungaran Antonius Simanjuntak $23.00