by Ir. Hieronymus Budi Santoso $5.00
by Budi Santoso $6.00
by B.B. Triatmoko, SJ $6.00
by Mgr. P. Van Diepen, OSA. $6.00
by Ir. Abbas Siregar Djarijah $6.00
by Ir. M. Lies Suprapti $7.00