Tripathy, Binod Chandra, Shyamal Debnath, and Subrata Saha. “On Some Difference Sequence Spaces of Interval Numbers.”. Proyecciones (Antofagasta, On line) 37, no. 4 (November 22, 2018): 603-612. Accessed April 25, 2024. https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/3270.