Routledge,5 Raja Grafindo Persada,4 Rajawali Pers,2 Richard D. Irwin, Inc.,2 Rineka Cipta,2 Riyadhatul Ihsan,2 Routledge Cavendish,1 RajaGrafindo Persada,1 Rajawali,1 Rangkang Education,1 RBI Research,1 Red & White Publishing,1 Redwood Burn Limited, Trowbridge, Wiltshire,1 Rekayasa industri,,1 Review Publishing Company,1 ROSC Domestic Consultant for Indonesia,1