by Rumah Sakit Persahabatan $7.00
by S. Soegijanto $11.00
by Prof. Dr. A. Bari Saifuddin, MPH $6.00
by Thabrani $9.00
by WK $11.00
by Thabrani, Seno Adjie $11.00
by Nursalam $9.00
by WK $16.00