by Ir. Mul Muyani Sutedjo $7.00
by Dr. Ibrahim Bafadal, M.Pd $6.00
by Adolf Schacfht, Drs. Hafifi $20.00
by Drs. H. Burhanuddin Salam, M.M $7.00
by Drs. SK. Bonar $7.00
by Erman Rajagukguk, S.H $6.00