by Imam Tholkhah $9.00
by Drs. Abdul Chaer $11.00
by A.H. Polard, dkk $11.00
by DR. Soekidjo Notoatmodjo $7.00
by Dr. Soemiarti Patmonodewo $7.00
by Ir. Mul Muyani Sutedjo $6.00