by Drs. Domi C. Matutina $12.00
by Drs. Sudiyono, M.Si $6.00
by Drs. H.A.F. Idris $11.00
by Prof. Mr. Roeslan Saleh $7.00
by Parwadi Moengin $9.00
by Ir. Susy Fatena Roestiyanti, M.Sc $7.00