by Anita N. $9.00
by Dr. Herman Cipto, SpKK, dr. Srie Prihianti Ismiarto $5.00
by Dr. W. Herdin Sibuea $11.00
by Lyle W. Morgan II, Ph.D., HMD $7.00
by Aziz Alimul $9.00
by Syaifuddin $12.00