by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Glenn A. Welsch, dkk $22.00
by Wahyu Qamara Mugnisjah & Asep Setiawan $7.00
by Notosusanto. Nugroho $6.00
by Dr. Paul Suparno, SJ. Dkk $6.00
by John A. Schindler, M.D $9.00