by Yoga Aditama, Tjandra $5.00
by Aziz Alimul $11.00
by Dr. Menaldi Rasmin, SpP(K), FCCP $5.00
by Ir. Arif Hartoyo, M. S $5.00
by Syaifuddin $12.00
by Nancy E. Lane, M. D $9.00
by Rumah Sakit Persahabatan $7.00