by Ikram, Achadiati $7.00
by Ir. Hieronymus Budi Santoso $5.00
by M. Fakhri Husein $12.00
by Abdoelmanap, Soerowo & T.H. Manurung $6.00
by Ir. M. Lies Suprapti $6.00
by Bayu Adjie $9.00