Ardianto, T., Warsinggih, W. and Seweng, A. (2019) “Correlation Between Histopathological Grading and Appearance of Obstruction With Level of Carsino-Embryonic Antigen (CEA) in Colorectal Carcinoma”, International Journal of Sciences: Basic and Applied Research (IJSBAR), 45(2), pp. 31–38. Available at: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/9932 (Accessed: 6 May 2024).