by Prof. S.H. Rewoldt, Terj. Drs. A.H. Ali $7.00
by Richard Carlson, Ph.D $9.00
by Prof. Dr. Kees Bertens, MSC $9.00
by Dr. Soeparman, S.H., M.H. $5.00
by $7.00
by Drs. H. Abu Ahmadi $11.00
by $6.00
by - $7.00
by dr. Muchlis Ramli, dr. Rainy U., dr. Sonar S.P $6.00