Henuk, Yohana Gunawan, Paul Nugraha, and Andi Andi. “Studi Mengenai Directed Changes Dan Constructive Changes Pada Proyek Bangunan Tinggi Di Surabaya”. Dimensi Utama Teknik Sipil 3, no. 2 (October 31, 2016): 23–30. Accessed April 30, 2024. https://duts.petra.ac.id/index.php/duts/article/view/76.