by WK $13.00
by Nursalam $9.00
by dr. Clifford Rose & dr. Paul Davies $6.00
by Prof. dr. Unandar Budimulja, dr. Kusmarinah Bramono $7.00
by dr. Sylvia D. Elvira $5.00
by WK $12.00
by Majalah Sedap $6.25