Ramadhan, D., and H. . Magdalena. “Assessing Information System Acquisition and Implementation Using COBIT 4.1 in Housing Developers”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 10, no. 3, July 2026, pp. 1267-76, doi:10.33395/sinkron.v10i3.16039.