Ali Imron, M. ., Teki Tjendani, H. . and Witjaksana, B. . (2022) “Analysis of Factors Causing Variation Order In Construction Projects of PT. Tatamulia Nusantara Indah Surabaya Branch Office 2018-2022 Period”, Devotion : Journal of Research and Community Service, 3(14), pp. 2695–2706. doi: 10.36418/dev.v3i14.328.