by Ir. Moehar Daniel, M.S $7.00
by Niccolo Machiavelli $6.00
by Tung Desem Waringin $13.00
by Freddy Rangkuti $11.00
by Siti Musdah Mulia $7.00
by Marius P. Angipora $11.00
by Arief $12.00