Yasser A. ABDEL-HADI; A. H. HASSAN. Variation of the Twilight Stages due to Sun Elevation: A Case Study in Malaysia. New Trends in Physical Science Research Vol. 4, [S. l.], p. 125–145, 2022. DOI: 10.9734/bpi/ntpsr/v4/6032F. Disponível em: https://stm.bookpi.org/NTPSR-V4/article/view/6939. Acesso em: 13 jun. 2026.