by Richard Carlson, Ph.D $9.00
by Prof. Dr. J.E. Sahetapy, S.H. $3.00
by DR. Ir. Hj. Tati Nurmala, S.W $6.00
by Tony Wolf $9.00
by Vincent Gaspersz $9.00
by Tempany Deckert $6.00
by DR. A. Saleh Abdullah $9.00
by Prof. Dr. I.H. Ph. Diederiks - Verschoor $7.00
by Mira W. $9.00
