by Ir. G. Djatmiko Sudarmo & Ir. S. J. Edy Purnomo $12.00
by Martin Van Bruinessen $7.00
by A. Sandiwanbrata, Pr. $4.00
by A.M. Mangunhardjana, SJ $6.00
by Ir. Bambang Cahyono $6.00
by dr. J.F. Shipley $5.00