Chan, Ning Kang, and Isredza Rahmi A Hamid. “Feature Extraction Tool for Email Header Using Bidirectional Encoder Representation from Transformers (BERT) Model Constructs”. Applied Information Technology And Computer Science, vol. 6, no. 1, July 2025, pp. 521-38, https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/16605.