by Drs. Slamet Santoso $6.00
by Anwar, Moh. Arsjad, dkk $6.00
by Gunawan Wiradi $12.00
by Hardiyono $6.00
by Doli D. Siregar $48.00
by Susmayati, B.A., dkk $6.00
by Giddens, Anthony $7.00
by Rita Erwiyah $6.00
by - $5.00