by Ir. Jarot Wijanarko $9.00
by Agus Sunyoto $11.00
by Nasution, Harun $5.00
by KWI $13.00
by P. Bernard raho, SVD $7.00
by Prof. K. Ali $6.00
by Glenn A. Welsch $13.00
by Kasmir, S.E., M.M $7.00
by WK $13.00
by Sutarni M. Soerjowinoto $6.00
by Leden Marpaung, S.H. $11.00
by Ir. M. Lies Suprapti $6.00