Ervianto, Wulfram Indri. “KAJIAN TENTANG KOTA BERKELANJUTAN DI INDONESIA (STUDI KASUS KOTA YOGYAKARTA)”. Jurnal Media Teknik Sipil 16, no. 1 (June 11, 2018): 60–65. Accessed June 9, 2026. https://ejournal.umm.ac.id/index.php/jmts/article/view/4995.