by Drs. Suyadi Prawirosentono, MBA $7.00
by Drs. Muchdarsyah Sinungan $11.00
by Bob Messing $7.00
by Prof. Mr. Notonagoro $9.00
by Dr. Zakiah Daradjat, dkk $11.00
by Prof. Dr. S. Nasution, M.A. $7.00