by Wayne L. Wesscott $9.00
by Drs. Andi Baso Mappatato, M.A. $6.00
by M. Amin Summa $11.00
by Drs. R. Martino $6.00
by - $13.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00