by $6.00
by A. B. Setiaji $9.00
by Prof. Dr. Sondang P. Siagian, M.P.A $9.00
by Henry Bustani $9.00
by Dr. Zakiah Daradjat, dkk $11.00
by Rhenald Kasali $11.00
by Robert H. Strickland $9.00
by Redaksi Rineka Cipta $7.00
by Ir. H. Rahmat Rukmana $5.00
by H. Rahmat Rukmana $5.00
by Ir. Setijo Pitojo $6.00
by Dr. Margaretha Andi Loho Lethe $20.00