by Jonni M.S, M.Sitorus, Nelly K $7.00
by Amru Khaled $6.00
by Sukidi $9.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by G. Budi Subanar, SJ. $6.00
by Joos van Vugt $7.00