Determination of the Deadline for Isha Prayer: Fiqh and Astronomical Analysis of the Concept of Midnight. Journal of Astronomy and Sharia Applications (JASA), [S. l.], v. 1, n. 1, p. 50–66, 2026. DOI: 10.66325/jasa.v1i1.332. Disponível em: https://juna.nusantarajournal.com/index.php/jasu/article/view/332. Acesso em: 12 nov. 2026.