The State of Mathematical Sciences in the Central Maghreb during the 8th–9th Centuries AH / 14th–15th Centuries AD. EJRS [انترنت]. 30 أبريل، 2026 [وثق 21 مايو، 2026];18(2). موجود في: https://journals.univ-ghardaia.edu.dz/elwahat/article/view/2002