Walbridge, John. “ Avicenna to G̲h̲āzīpūrī: Studies in Eastern Islamic Logic”. Islamic Studies 41, no. 3 (September 30, 2002): 534–537. Accessed January 13, 2026. http://irigs.iiu.edu.pk:64447/ojs/index.php/islamicstudies/article/view/4927.