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

by Indriani
$11.00

by Prof. DR. Taliziduhu Ndraha
$7.00

by Andrei Aksana
$11.00

by Abdurrahman Wahid
$9.00

by Prof. Miriam Budiardjo
$7.00