by Jacqueline Wilson $6.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Ir. Joko Mulyanto $0.00
by Darminta, J, SJ $4.00
by Muhammad Utsman Khasyt $6.00
by Dra. Hermawati, M.A $7.00