by H. Sudiarto & Zaeni Asyhadie $7.00
by Pandji Anoraga, S.E, M.M $7.00
by Drs. H. Farozin $6.00
by Dra. Sri R.D. Putranti, M.S $16.00
by $9.00
by Soekanto, Soerjono $6.00