M. P. CHAUDHARY; SALAHUDDIN. A Summation Formula Clung to Contiguous Relation. Global Journal of Science Frontier Research, [S. l.], v. 13, n. F3, p. 27–39, 2013. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/848. Acesso em: 3 may. 2024.