by Aziz Alimul $7.00
by Ariesto Hadi $16.00
by WK $13.00
by $6.00
by Syam Hardy $7.00
by Ir. Heinz Frick & Ch. Koesmartadi $6.00
by Prof. Dr. Makmur, M.Si $7.00
by F. Budi Hardiman $9.00
by Winarsih, Dra. $9.00