Mazidah Mat Rejab, Nurulhuda Firdaus Mohd Azmi, Suriayati Chuprat, and Hairulnizam Mahdin. 2023. Traceability Matrix for Effort Estimation in Change Request. Penerbit UTHM. https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/501.