by Prof. Dr. Kees Bertens, MSC $7.00
by Dr. BS. Mardiatmadja, SJ. $4.00
by Wahyu Widodo, Sri Sumarah $9.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $6.00
by John Kirvan $6.00
by dr. Endang Lanywati $5.00