by Dr. Albert M. Hutapea, MPH $11.00
by Prof. Subowo, dr. M.Sc., Ph.D $7.00
by Jan Takasihaeng $7.00
by Herry Sofiandy Halim $10.00
by Irianto Aritonang $7.00
by Nursalam $9.00
by Lipschutz $12.00
by Anton Irianto $9.00
by Sandy MacGregor $7.00
by Sarah Webb $11.00
by AHMAD ROFI' USMANI $13.00
by CARL SEMMELROTH, PH.D. $10.00