- KAP Kanaka Puradiredja, Suhartono www.kanaka.co.id
- Nexia TS Singapore www.nexiats.com.sg
- Indonesia Coordinating Investment Board www.bkpm.go.id
- Directorate General of Custom www.beacukai.go.id
- Directorate General of Taxation www.pajak.go.id
- Minister Finance Republic of Indonesia www.depkeu.go.id/eng/