by Slameto $9.00
by Preter Lauster $6.00
by J. I. G. M. Drost, SJ $11.00
by Drs. Tgk. H.Z.A. Syihab $6.00
by Prof. Dr. Suharsimi Arikunto $11.00
by George R. Terry $11.00
by Munir Fuady, S.H., M.H., LL.M. $7.00
by Ir. Hieronymus Budi Santoso $5.00
by E. Martasudjita, Pr. J. Kristanto, Pr. $4.00
by Benny Susetyo $7.00
by Syamsudin Haris $20.00
by Melanie Sadono Djamil, Boedi Oetomo Roeslan $8.00