by E. Martasudjita, Pr. $3.00
by A. Reza Arasteh $6.00
by Y. Rumanto $6.00
by Suwendi, M.Ag $7.00
by $7.00
by Sabaruddin $5.00
by Steven Dowsen, dkk $13.00
by Ir. Bambang Cahyono $7.00
by Nursalam $9.00
by - $5.00
by DR. Dr. Sidartawan Soegondo, SpPD-KEMP, FACE $11.00
by Riza Astuti Yuli W $8.00