by Prof. Dr. Suharsimi Arikunto $11.00
by Soemartojo, Noeniek $6.00
by Dr. Moh. Shochib $9.00
by Harry Simons $12.00
by $11.00
by Pandji Anoraga, S.E., M.M $11.00
by Parakkasi, Aminuddin $6.00
by Lita Soetopo $7.00
by Drs. Al. Amin Susanto $3.00
by Prof. Dr. Gerben Heitink & Fred. Heselaars Hartono, SJ. $8.00
by $4.00
by R. Soeroso, S. H. $12.00