SAMUEL K. M. HO. SUNSPOT ELECTORAL THEORY ON USA PRESIDENCY (SETUP). INTERNATIONAL JOURNAL OF POLITICAL SCIENCE (IJPSC), [S. l.], v. 1, n. 2, p. 13–24, 2024. Disponível em: https://lib-index.com/index.php/IJPSC/article/view/IJPSC_01_02_002.. Acesso em: 14 mar. 2025.