Wahyudi, Mhd. “Blue Economy Challenge The Threatening Impact of Indonesia’s Sea Sand Export Policy”. JPAP: Jurnal Penelitian Administrasi Publik 11, no. 1 (February 24, 2025): 32-43. Accessed June 28, 2025. https://jurnal.untag-sby.ac.id/index.php/jpap/article/view/12082.