by Prof. DR. Taliziduhu Ndraha $7.00
by Djamaluddin Darwis $7.00
by Ir. Sujamto $12.00
by - $12.00
by Kamaruddin Ahmad., S.E $7.00
by J.H. Tarumetor Tairas $9.00
by Dr. Moh. Shochib $9.00