by $20.00
by Prof. DR. Taliziduhu Ndraha $13.00
by Prof. Dr. H. Abdurrahmat Fathoni, M.Si $7.00
by Ippho Santosa $7.00
by Tung Desem Waringin $13.00
by DR. M.N. Bustan & DRG. A. Arsunan, M.Kes $9.00
by DR. Andi Hamzah, S.H $11.00