by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ
$6.00

by Aziz Alimul
$7.00

by Dr. Tony Setiabudi, Ph.D., Dr. Hardywinoto, SKM
$9.00

by Leila Ch. Budiman (Kata Pengantar)
$7.00

by Shelly
$26.00

by Stallings
$18.00