by Ir. Nur Tjahjadi $5.00
by Endang Saifuddin Anshari $12.00
by Darmawijaya, St., Pr. $8.00
by Suhardi, dkk $11.00
by Ir. Hieronymus Budi Santoso & Tata S. $5.00
by Ir. Hieronymus Budi Santoso $5.00