by Prof. Dr. Samsuridjal Djauzi, SpPD $5.00
by Aziz Alimul $7.00
by Prof. Dr. Nurlela Boedjang, dr. Kahar Kusumawidjaja $6.00
by Nursalam $12.00
by D.B. Jellife $7.00
by Dr. Muchtaruddin Mansyur $5.00