by Prof. Dr. Soekidjo Notoatmodjo $13.00
by Raldi Artono $18.00
by Prof. Dr. Samsuridjal Djauzi, SpPD $5.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $6.00
by Gordon, Gibson G. dan Paul Skett $7.00
by Lipschutz $12.00