Analysis of information sources in references of the Wikipedia article "Kûşyâr bin Lebbân" in Turkish language version.
Another important early treatise that publicized decimal numbers was Iranian mathematician and astronomer Kūshyār ibn Labbān’s (fl. 1000) Kitāb fī usūl hisāb al-hind (Principles of Hindu Reckoning), a leading arithmetic textbook.
