Shehu, Abolore Kamaldeen, and Peter Chifum Bardi. “Evaluating the Impact of Electronic Payment Systems on Service Delivery: A Case Study of Warri Refining Petroleum Company”. Faculty of Natural and Applied Sciences Journal of Applied and Physical Sciences 2, no. 1 (September 30, 2024): 20–25. Accessed October 30, 2024. https://fnasjournals.com/index.php/FNAS-JAPS/article/view/442.