by P. M. Laksono, dkk $6.00
by Drs. Marcel Go, M.S $7.00
by Rafael Raga Maran $9.00
by Drs. Husein Umar, S.E., M.M., MBA $7.00
by Allan B. Muntjoy $9.00
by Dede Mulyanto, Deni Mukbar, Maria Endah, Putut Aryo $13.00