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		Yusuf, Hudi, AND 		Dewi, Ratna.
" PENGUJIAN PERATURAN PRESIDEN NO. 109 TAHUN 2022 TENTANG FLIGHT INFORMATION REGION JAKARTA DAN FLIGHT INFORMATION REGION SINGAPORE" <em>Kertha Semaya : Journal Ilmu Hukum</em> [Online], Volume 12 Number 11 (7 November 2024)