Srivastava, J.K., and Narayan Prasad Pahari. “On Certain Topological Structures of Product Normed Space Valued Paranormed Space of Summable Sequences”. Journal of Institute of Science and Technology 19, no. 1 (November 8, 2015): 25–29. Accessed July 17, 2024. https://nepjol.info/index.php/JIST/article/view/13822.