Hoang Van Phong, Nguyen Ngoc Dung, Nguyen Thi Thu Huyen, Tran Thi Thu Trang4, Pham Tuan Viet, and Dao Anh Son. “ KNOWLEDGE AND ATTITUDE TOWARDS BLOOD DONATION OF PRESIDENTS AT CAT HAI AND BACH LONG VI ISLAND DISTRICTS AT HAI PHONG CITY IN 2019”. PalArch’s Journal of Archaeology of Egypt / Egyptology 18, no. 09 (July 13, 2021): 538-547. Accessed August 12, 2022. https://www.archives.palarch.nl/index.php/jae/article/view/9337.