by Michael J. Tang $13.00
by Yusran Pora $7.00
by Dra. Ninik Widiyanti $9.00
by Dr. Oemar Hamalik $7.00
by Drs. Suyadi Prawirosentono, MBA $0.00
by Prof. Dr. Ami Muhammad $9.00
by Yusuf Siba'i $12.00
by R.M. Comisarow, MD & M. Barkin, MD $5.00
by Andrias Harefa $7.00
by Irmansyah Effendi $7.00
by Mahyudin Al Mudra & Tuti Sumarningsih $6.00