by Dr. R. Hutapea, SKM, Ph.D $7.00
by Aziz Alimul $9.00
by Tanenbaum $16.00
by WK $20.00
by Ariesto Hadi $16.00
by Alison Hull, M.P.H., R.D $6.00
by Dr. Arthur M. Whitehill $7.00
by Edilius, S.E dan Drs. Sudarsono, S.H., M.Si $11.00
by Aziz Alimul $7.00
by Vitahealth $7.00
by J. Donald Walters $5.00
by $6.00