Gui, A. et al. 2009. TINGKAT KEPUASAN PENGGUNA APLIKASI INTERSYSTEM BUSINESS SOLUTION (IBS) PADA PT CITAJAYA INFINITE SYSTEM. CommIT (Communication and Information Technology) Journal. 3, 1 (May 2009), 53–58. DOI:https://doi.org/10.21512/commit.v3i1.514.