by Drs. G. Kartasapoetra $9.00
by Drs. Muchdarsyah Sinungan $7.00
by Prijono Tjiptoherijanto, S.E, M.A, Ph.D $7.00
by Drs. H.A.F. Idris $11.00
by Dra. Khusnul Khotimah $6.00
by Prof. Dr. S. Nasution, M.A. $7.00