Ismail, Fatin Filzahti, Rozilawati Razali, and Zulkefli Mansor. “Considerations for Cost Estimation of Software Testing Outsourcing Projects”. International Journal on Advanced Science, Engineering and Information Technology 9, no. 1 (January 17, 2019): 142–152. Accessed May 20, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/6382.