Oktava, M. S.; Ernawati, E.; Satiah, S. ANALISIS KETIADAAN UNDANG-UNDANG TENTANG LEMBAGA KEPRESIDENAN DITINJAU DALAM SISTEM KETATANEGARAAN REPUBLIK INDONESIA: Analysis Of the Absence of Law on the Presidential Institution Reviewed in the Constitutional System of the Republic of Indonesia. Ganec Swara 2026, 20, 579-584.