by J. I. G. M. Drost, SJ $11.00
by Ir. Hieronymus Budi Santoso & Tata S. $5.00
by Dr. D. F. Walker $7.00
by WK $12.00
by Prof. Dr. Kees Bertens, MSC $9.00
by A. Gianto, SJ. $7.00
by $30.00
by $12.00
by $4.00
by - $12.00