Friday Zinzendoff Okwonu. “Application of Shewhart Control Chart to Analyze the Effect of Income on Body Mass Index and Blood Pressure”. Applied Mathematics and Computational Intelligence (AMCI) 10 (December 30, 2021): 140–153. Accessed November 26, 2024. https://ejournal.unimap.edu.my/index.php/amci/article/view/144.