by Hardiyono $6.00
by DR. M.N. Bustan & DRG. A. Arsunan, M.Kes $9.00
by Kusnadi $6.00
by K.H. Zainal Arifin Djamaris $6.00
by Muhammad Hasan Aydid $6.00
by David Campbell, Ph.D $5.00
by Bachtiar Ibrahim $12.00
by Mastenbroek, W.F.G. $7.00
by Al. Purwa Hadiwardoyo, MSF. $3.00
by WK $12.00
by Aji Supriyanto $16.00
by Aziz Alimul $9.00