by P. M. Laksono, dkk $6.00
by Djamin, Zulkarnain $5.00
by dr. Boyke Dian Nugraha $7.00
by Prof. Drs. H. Soegyarto Mangkuatmodjo $9.00
by Sulistyowati Irianto, Lim Sing Meij, Firliana Purwanti $9.00
by Ir. Respati $9.00