เอี่ยมพันธ์ อ. Generalized Beauty:Numbers of Digits as 1 at All and Linear Equations. KKU Science Journal, [S. l.], v. 41, n. 4, p. 919–927, 2013. Disponível em: https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/249192. Acesso em: 26 aug. 2026.