कुमार जितेन्द्र. पेयजल संरक्षण: चिंता का प्रमुख विषय. Innovative Research Thoughts, [S. l.], v. 3, n. 7, p. 122–126, 2017. Disponível em: https://irt.shodhsagar.com/index.php/j/article/view/174. Acesso em: 19 sep. 2024.