Noerlina, Noerlina, Deliusno Deliusno, Retdonero Retdonero, and Dennis Eryanto. “Manajemen Proyek Online Trading System PT Universal Broker Indonesia”. Journal The Winners 9, no. 1 (March 31, 2008): 35-47. Accessed November 28, 2024. https://journal.binus.ac.id/index.php/winners/article/view/729.