by Alfons Taryadi $7.00
by Helmut Morsbach, dkk $7.00
by Nasrul Koharuddin $6.00
by Drs. Daryanto $6.00
by G. Kartasapoetra dan Dra. Hartini $13.00
by Eaton, Joseph W $6.00
by John C. Maxwell $13.00