by P.L. Chan, MD & GA Taylor, MD $5.00
by Reeves $13.00
by dr. Savitri Sayogo $5.00
by Evelyne Pearce $9.00
by dr. Benhard Rudyanto Sinaga, SpKJ $9.00
by Dr. Ronald Hutapea, SKM, Ph.D $9.00
by Soumy Ana $7.00