by Prof. Dr. Nurlela Boedjang, dr. Kahar Kusumawidjaja $6.00
by B. U. Hadikusumo $6.00
by Prof. Dr. Soekidjo Notoatmodjo $13.00
by M. Aleq Sander, S.Dr $22.00
by Tarwoto $9.00
by Nursalam $13.00