by Prof. dr. Arjatmo Tjokronegoro, dr. Sumedi Sudarsono $7.00
by Dr. Bahder Johan Nasution, S.H., S.M., M.Hum $7.00
by Hendra Sutardhio $9.00
by Jansen Silalahi $7.00
by dr. Clifford Rose & dr. Paul Davies $6.00
by Nursalam $11.00