by Dripa Sjabana $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by Ir. Sumeru Ashari, M.A gr. Sc $7.00
by Anton Margo $8.00
by Djoko Prakoso, S.H $7.00
by Prof. Dr. Suharsimi Arikunto $18.00