Suparjo, Suparjo. “Analisis Ketersediaan Infrastruktur Dasar Di Daerah Perbatasan Negara Indonesia Dan Papua Nugini”. Jurnal Konstruksi & Rekayasa Sipil 1, no. 1 (May 21, 2025): 38–48. Accessed October 9, 2025. http://ppsuniyap.id/journal.ppsuniyap.id/index.php/jkrs/article/view/85.