by Sagimun MD $7.00
by ISEI $18.00
by Hendri Ma'ruf $11.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Glenn A. Welsch, dkk $22.00
by Yudhis M.Burhanuddin $10.00
by Kansil C.S.T $9.00
by Chapra, Steven C. dan P. Canale Raymond $11.00
by M.E. Dicks $6.00
by Jan Takasihaeng $7.00
by Malvino $20.00
by - $13.00