Braimah O, Jaiyeola S, Edokpa I, Rabiu M. p-Value Cummulative Sum (CUSUM) Chart: A Tool for Monitoring InflationRate. AJPAS. 2016;2(2):106–113. Accessed July 4, 2026. https://alhikmahuniversity.edu.ng/AJPAS/index.php/journal/article/view/142