by Tinbergen, Jan $6.00
by Prof. J. Suprapto, M.A. APU $9.00
by Drs. K. Permadi, S.H $7.00
by Stephen K. Sanderson $12.00
by Penny, D.H. $6.00
by Dr. Said Kelana & Dr. Chandra W $12.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Drs. Sudarsono, S.H., M.Si, dkk $12.00
by Yasa Boga $11.00
by APPMI $9.00
by Adelbert Snijders $12.00
by MUHAMMAD BAGIR $17.00