Husni, Nobrya. “Pengelolaan Kawasan Ekonomi Khusus Sei Mangkei Berbasis Penilaian Kinerja Lingkungan”. Inovasi 15, no. 1 (May 28, 2018): 57–63. Accessed June 15, 2025. http://jurnal.bappelitbang.sumutprov.go.id/index.php/inovasi/article/view/51.