by Abuddin Nata $12.00
by R. Zein, S.H., M.S $7.00
by Pandji Anoraga, S.E, M.M $7.00
by Prof. DR. Taliziduhu Ndraha $11.00
by Prof. I. R. Poedjawiyatna $9.00
by H.R.A.C. Lawalata $9.00