by Drs. Djoko Tri Prasetya, dkk $7.00
by J. Pamudji Suptandar, Arrohman Prayitno & Trubus Rahardiansah P. $10.00
by Martin Lukito Sinaga $7.00
by Alfons Taryadi (Penerjemah) $11.00
by Prof. DR. Sukardjo $7.00
by $11.00