Pengaruh doktrin entitas ekonomi tunggal terhadap hukum yang berlaku dan status personal induk perusahaan: analisis HPI terhadap kasus temasek v KPPU RI, ICI v commission, dan Korea-Certain Paper (Ind) = The Influence of the doctrine of the single economic entity on the personal status of the parent company and applicable law: analysis of private international law on the case of temasek v KPPU RI, ICI v commission, and Korea-Certain Paper (Ind)