by H. Musa, MBA $5.00
by Tim Boga GPU $7.00
by Friedrich Nikol $5.00
by Moerdjoko $6.00
by Tim Busana GPU $6.00
by ROSITA SIHOMBING $6.00
by Edward Aspinnal $9.00
by Sulaiman $9.00
by Kusumoputro, Sidiarto dkk $9.00