Dr. Aklima Parvin, Dr. Sayem Al Monsur Faizi, Dr. Mohammed Rafiqul Islam, Dr. Md. Saiful Islam, and Dr. Rana Jahangir Alam, “UTILITY OF CA 19-9 AND CEA IN DETERMINING RESECTABILITY OF PANCREATIC CANCER”, Med. res. chronicles, vol. 7, no. 6, pp. 399-409, Dec. 2020.