by Drs. G. Kartasapoetra
$7.00

by A.M. Mangunhardjana, SJ
$6.00

by N. Wahyu Sulistiyana
$4.00

by E. Martasudjita, Pr.
$3.00

by Darminta, J, SJ
$4.00

by Ir. G. Djatmiko Sudarmo & Ir. S. J. Edy Purnomo
$12.00