by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $11.00
by Drs. Heryando Palar $7.00
by Prof. I. R. Poedjawiyatna $7.00
by Al. Wahjasudibja, Pr. $3.00
by Dr. Muhammad Abdul Hadi $6.00
by Arthur E. Zannoni $7.00