by Adiwarman Karim $12.00
by John Z. Loudoe, S.H $9.00
by DR. M.N. Bustan & DRG. A. Arsunan, M.Kes $9.00
by Sagimun MD $12.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Prof. Dr. Budi Winarno $9.00