Bariki, Syam Kumar, Byragi Reddy T., and Geetha Saramanda. “Assessment of Physico- Chemical Quality of Drinking Water in Araku Valley Mandal of Visakhapatnam District, Andhra Pradesh, India”. The International Journal of Science & Technoledge 3, no. 3 (March 31, 2015). Accessed July 7, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/124336.