Cita APA (7a ed.)

Wu, H., & Lou, S. Y. (2025). Permutation--invariant Niven numbers.

Cita Chicago Style (17a ed.)

Wu, Hui-Ling, y S. Y. Lou. Permutation--invariant Niven Numbers. 2025.

Cita MLA (9a ed.)

Wu, Hui-Ling, y S. Y. Lou. Permutation--invariant Niven Numbers. 2025.