by Bambang Agus Murtidjo $6.00
by A. Sonny Keraf & Mikhael Dua $7.00
by Drs. Al. Soenarto S.W., dkk $6.00
by Ashari, Sumeru $9.00
by Dr. A. Supratiknya $6.00
by Pandi Winoto, CP $6.00