Ombak,94 Ombak74 Oxford University Press,37 Oxford University Press33 Open University Press,14 Ombak,,12 oxford8 Oxford University,5 Obor indonesia3 Open Books2 Oxford University2 Ocean Geographic2 Oxford,2 Otoritas jasa keuangan,2 Offset BP1 Ott Publisher,1 Offset Ria1 Ott Publishers Thun,1 Outre1 Ombak ,1