TEAM, S. Unitary Analogues of Some Arithmetic Functions: Pussadee Yangklan, Vichian Laohakosol, Pattira Ruengsinsub, Sukrawan Mavecha. Thai Journal of Mathematics, [S. l.], p. 127–134, 2020. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/944. Acesso em: 3 jul. 2024.