by M. Hartono $3.00
by Carl Ann Morrow $6.00
by Feri Surya Putra $5.00
by Ir. F.X. Susanto Tumpal HS. Siregar $5.00
by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani $6.00
by Martin Wijokongko $6.00
by Binyamin Torun $6.00
by Karl May $6.00
by Jamilah Jones Abu Aminah Bilal Philips $6.00
by WK $12.00
by ISEI $11.00
by Awi Suryadi $10.99