by Drs. Andi Baso Mappatato, M.A. $6.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by - $13.00
by RT. Sutantya R.H $7.00
by Booth, Anne $9.00
by Alvin S. Johnson $11.00
by Ir. Setijo Pitojo $6.00
by Brooks $20.00
by Khalid Muhammad Khalid $6.00
by Sa'id Musfar al-Qahtani $5.00
by Tria Ayu K $5.00
by - $12.00