Maimuna, Waziri. “Assessment of the Microbial Quality of Sachet Water in Damaturu-Yobe State, Nigeria”. Journal of Asian Scientific Research 2, no. 2 (February 19, 2012): 76–80. Accessed July 3, 2024. https://archive.aessweb.com/index.php/5003/article/view/3328.