by Drs. Yustinus Semiun, OFM $20.00
by Ir. G. Djatmiko Sudarmo & Ir. S. J. Edy Purnomo $11.00
by M. Ghufron H. Kordi K $7.00
by Soekartawi $5.00
by V. Indra Sanjaya, Pr. $4.00
by $12.00