by Ir. Ari Wijayani Purwanto $9.00
by Kazuo Shimogaki $7.00
by Ir. Budi Samadi $6.00
by Bambang Agus Murtidjo $6.00
by Rm. Agustinus Riyanto, SCJ $6.00
by Gutomo Priyatmono $12.00