د. عبد اللّطيف أحمد يعقوب محمّد. The Islamic invitation style of a believer from the people of Yassin and its impact on the call for Islam as in the Quran chapter of Yassin. White Nile Journal for Studies and Research, [S. l.], n. 27, p. 90–105, 2026. Disponível em: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/94. Acesso em: 13 jun. 2026.