by A.H. Manurung, S.E $7.00
by Drs. Sudiyo $9.00
by Prof. Drs. H. A. W. Widjaja $9.00
by Prof. DR. S.P. Siagian, M.P.A $9.00
by Y.W. Sunindhia, S.H $9.00
by Drs. G. Kartasapoetra $12.00
by Nursalam $12.00
by Tarwoto $9.00