by Prof. Dr. Winardi $9.00
by Drs. Abdul Chaer $7.00
by Sei H. Dt. Tombak Alam $13.00
by Ir. Jumar $9.00
by Datje Rahajoekoesoemah $28.00
by Drs. Thohir Luth, M.A., dkk $6.00