by Triono Budi Astanto $12.00
by Wiranda dan G. Piliang Soewondo Djojosoebagio $7.00
by Ashadi Siregar & I Made Suarjana $6.00
by Desrosier, Norman W. $11.00
by Drs. Hg. Suseno Triyanto Widodo $6.00
by Muhammad Chirzin $5.00