by Jamrin Abubakar $15.00
by Saul M. Katz $6.00
by Drs. Djalinus Syah, Dra. H.N. Murdiati Sulastomo, dan Dra. H. Azimar Enong $9.00
by Elmi, Bachrul $7.00
by Dr. S. Prawirasusanto, M.Sc., dkk $9.00
by Ir. Sarjoni Basri $7.00