by M.A. Hendirsen $6.00
by Aziz Alimul $9.00
by Prof. Dr. Soekidjo Notoatmodjo $9.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00
by Nursalam $9.00
by Bahrie, A. Ma. Pd $7.00
by Ir. M. Lies Suprapti $7.00