by Metropop $9.00
by Idris Thaha $11.00
by Joe Bennet $7.00
by Maharsono Probho, SJ $5.00
by Bryan Magee $0.00
by Nursalam $9.00
by Bambang Soepeno, M.Pd $9.00
by Dr. S. Prawirasusanto, M.Sc., dkk $9.00
by M. Yatimin Abdullah $18.00
by Ir. F.X. Susanto Tumpal HS. Siregar $5.00
by Ir. Sujamto $7.00
by Dian Yasmina Fajri $6.00