by Drs. Ng. Phillips $9.00
by Kartadjoemena, H.S $7.00
by Sofyan Syafri Harahap $7.00
by Drs. Muchdarsyah Sinungan $11.00
by Indrasari Tjandraningsih, Hari Nugroho, Surya Tjandra $10.00
by $20.00