Rahim, Rahela, Ku Ruhana Ku-Mahamud, and Abu Talib Othman. 2022. “PERFORMANCE MODELING OF E-PROCUREMENT WORKFLOW USING GENERALISED STOCHASTIC PETRI NET (GSPN)”. Journal of Information and Communication Technology 1 (1):55-68. https://e-journal.uum.edu.my/index.php/jict/article/view/18117.