1.
Guarín-Zapata N, González Cotes AM, Patiño-Orozco A. Observe the time with this sundial. Rev. DyC. EAFIT [Internet]. 2025 Oct. 29 [cited 2026 Nov. 11];59(180). Available from: https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/8479