by Suharso, A.S.P $6.00
by R. Soegeng $16.00
by $9.00
by Lipschutz $12.00
by G. Siregar, Laksmi $7.00
by Ir. Hieronymus Budi Santoso $5.00
by WK $13.00
by Ariesto Hadi $16.00
by WK $12.00