by Prof. Dr. Soekidjo Notoatmodjo $9.00
by DM. Etter, Terj. Drs. Kusuma Wiraman $13.00
by Drs. Djalinus Syah $7.00
by Eko Purnomo $6.00
by Sagimun MD $6.00
by Prof. Dr. H. Abdurrahmat Fathoni, M.Si $7.00
by Gunawan Widjaja $9.00