by Drs. Amin Wijaja Tunggal, M.B.A $6.00
by Heryanto $5.00
by WK $11.00
by Dr. Ir. Muhammad Rasyaf, MS $6.00
by Laura Khalida $7.00
by $7.00
by Drs. H.M. Yacob Ibrahim $11.00
by Prof. Dr. Prayitno $9.00
by WK $12.00
by Wulandari Ekasari & Amatullah Shafiyyah $6.00
by Tim MedPress $6.00