by Prof. Dr. Umar Fahmi Achmadi, M.P.H., Ph.D $9.00
by Yoga Aditama, Tjandra $5.00
by Busroh, Ismid D.I $11.00
by Kusumoputro, Sidiarto dan Lily Djokosetio $7.00
by Th. Endang Purwoastuti $6.00
by $6.00