by H. Rahmat Rukmana & Indra Mukti Harahap $5.00
by Kuswandi $6.00
by Drs. Yustinus Semiun, OFM $20.00
by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by Mariasusai Dhavamony $11.00
by Afandhie Rosmarkam & Nasih Widya Yuwono $9.00