by Hendra Sutardhio $9.00
by M.A.W. Brouwer $11.00
by dr. Endang Lanywati $5.00
by Kusumoputro, Sidiarto dkk $9.00
by Dr. Handrawan Nadesul $11.00
by dr. Daniel Makes, Prof. Dr. dr. Susworo $5.00