Dr. Roqaya Ibrahim Al-Haaj Badri Muhammed, and Dr. Fatima Muhammed Amin Khalil. 2021. “Predicate Referral at Al-Sakaki’s through His Book The Key of Science”. International Journal on Humanities and Social Sciences, no. 24 (September):64-73. https://doi.org/10.33193/IJoHSS.24.2021.289.